﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2024v5.2" xsi:schemaLocation="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-11-14T11:09:12-08:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>810390489</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Boyle Deveny &amp; Meyer PC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>305 South 4th East Suite 200</AddressLine1Txt>
        <CityNm>Missoula</CityNm>
        <StateAbbreviationCd>MT</StateAbbreviationCd>
        <ZIPCd>59801</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>810495830</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>MUSEUM OF MOUNTAIN FLYING</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>MUSE</BusinessNameControlTxt>
      <PhoneNum>4062400395</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO BOX 16601</AddressLine1Txt>
        <CityNm>MISSOULA</CityNm>
        <StateAbbreviationCd>MT</StateAbbreviationCd>
        <ZIPCd>59808</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>ERIC KOMBEREC</PersonNm>
      <PersonTitleTxt>President</PersonTitleTxt>
      <SignatureDt>2025-11-14</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>MATTHEW K PRITCHARD CPA</PreparerPersonNm>
      <PTIN>P01787690</PTIN>
      <PhoneNum>4067213555</PhoneNum>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990 documentId="IRS990" referenceDocumentId="IRS990ScheduleO" softwareId="24020490" softwareVersionNum="2024v5.2">
      <PrincipalOfficerNm>ERIC KOMBEREC</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>PO BOX 16601</AddressLine1Txt>
        <CityNm>MISSOULA</CityNm>
        <StateAbbreviationCd>MT</StateAbbreviationCd>
        <ZIPCd>59808</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>497968</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>www.museumofmountainflying.org</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1985</FormationYr>
      <LegalDomicileStateCd>MT</LegalDomicileStateCd>
      <ActivityOrMissionDesc>PROVIDE HISTORY OF MOUNTAIN FLYING IN THE NORTHERN ROCKIES TO THE GENERAL PUBLIC.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>4</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>4</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <TotalVolunteersCnt>75</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <PYContributionsGrantsAmt>95823</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>210118</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>4034</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>8981</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>315</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>81085</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>23915</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>31712</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>124087</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>331896</CYTotalRevenueAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <CYSalariesCompEmpBnftPaidAmt>0</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>111494</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>106868</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>111494</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>106868</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>12593</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>225028</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>1070319</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>1169294</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>126053</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>0</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>944266</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>1169294</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>PROVIDE HISTORY OF MOUNTAIN FLYING IN THE NORTHERN ROCKIES TO THE GENERAL PUBLIC.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>97376</ExpenseAmt>
      <RevenueAmt>35293</RevenueAmt>
      <Desc>The Museum held the events and participated in the activities described below to promote, educate, and inspire current and future generations of people and to generate interest and insight into the world of aviation as well as to promote the Museum of Mountain Flying and its projects.On March 17, 2024 a Celebration of Life was held at the Museum of Mountain Flying in memory of Charles Richard Dick Komberec, a founder and Board Member of the Museum. The celebration was well attended. In addition to the Museum in Missoula, the Museum maintained a hangar at the Stevensville airport with expanded storage for artifacts for the first five months in 2024. The Stevensville hangar was sold May 15, 2024. Miss Montana, on May 4, 2024, flew to Hamilton, MT for a special Youth Expo Event. Miss Montana, on Memorial Day, May 27, 2024 flew with veterans and their spouses on four separate flights which included a low pass flight over the Missoula Veterans Cemetery and around the Missoula Valley.Miss Montana attended and helped Honor the 75th Mann Gulch Anniversary on August 4-6, 2024. Additionally, Miss Montana flew two groups of Mann Gulch family members over the Mann Gulch area.The Museum of Mountain Flying &amp; Fishing Camp, organized by member Kaye Ebelt was held August 5-9, 2024 for students who learned about and completed projects about EAA Flights, designed parachutes, and participated in a smoke jumper scavenger hunt, as well as aspects of aviation regarding flight. Campers learned how to identify fish, learned fishing regulations and participated in fly-fishing activities. The 2024 Museum of Mountain Flying &amp; Fishing Camp added an overnight camping experience as well. The camp was funded through registration fees. Miss Montana, on August 10, 2024, flew two Memorial flights for veterans and their spouses over the Ronan and Darby Cemeteries. Miss Montana attended the Anaconda Fly-In and Car Show annual event on August 24, 2024. Miss Montana flew over the Grizzly home football game on August 24, 2024. Miss Montana flew a special memorial mission for a family on September 14, 2024. Miss Montana flew over Grizzly Stadium for the Military Appreciation Griz game on September 14, 2024. A Fly-In was held at Sky Ranch in Kalispell on October 4, 2024 to encourage participation of Kalispell area members and guests in the Museum's activities. Miss Montana flew U of M alumni and Monte around the Missoula Valley on October 11, 2024. The Museum was gifted a Tractor; Wheeled, Aircraft G.S.E. Towing NS 32 A-30, Technical Manuel NA-19-40-45, Serial Number 006 from Two Bears Management, LLC. Miss Montana made low pass fly-over a new Tunnel To Towers home in Stevensville, MT in honor of Trooper Wade Palmer on December 12, 2024. In celebration of the Red Sleighs Over Montana project the Museum held an open house with free admission on December 15th, 2024 to encourage members to participate. The community was invited to visit the Museum, see Santa, and enjoy hot cocoa, candy canes and holiday shopping. The Red Sleighs over Montana project focused on children located in the Stevensville and Arlee areas for distribution of gifts in 2024. Gifts were delivered by a helicopter which carried Santa and Mrs. Claus. Additional gifts were delivered by automobile. For the 5th year the Museum gathered toys, blankets, 39 quilts,12 knitted hats, 4 pillowcases, a homemade teddy bear, and other necessities and distributed them to rural communities where families in need had been identified. Several Santa, Mrs. Clause, and elf volunteers from the Museum traveled by helicopter or car to deliver the gifts.</Desc>
      <TotalProgramServiceExpensesAmt>97376</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="IRS990ScheduleA">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="IRS990ScheduleB">true</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="IRS990ScheduleD">false</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="IRS990ScheduleD">false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="IRS990ScheduleD">false</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="IRS990ScheduleD">false</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd referenceDocumentId="IRSScheduleD">false</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="IRS990ScheduleD">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="IRS990ScheduleD">false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="IRS990ScheduleD">false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="IRS990ScheduleD">false</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="IRS990ScheduleD">false</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="IRS990ScheduleD">false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD">false</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD">false</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>false</FundraisingActivitiesInd>
      <GamingActivitiesInd>false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>false</ScheduleJRequiredInd>
      <TaxExemptBondsInd>false</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>false</PYExcessBenefitTransInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>false</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>false</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>false</DeductibleArtContributionInd>
      <TerminateOperationsInd>false</TerminateOperationsInd>
      <PartialLiquidationInd>false</PartialLiquidationInd>
      <DisregardedEntityInd>false</DisregardedEntityInd>
      <RelatedEntityInd>false</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>true</ScheduleORequiredInd>
      <IRPDocumentCnt>1</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>true</BackupWthldComplianceInd>
      <EmployeeCnt>0</EmployeeCnt>
      <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>false</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>false</Form8282PropertyDisposedOfInd>
      <Form8282FiledCnt>0</Form8282FiledCnt>
      <RcvFndsToPayPrsnlBnftCntrctInd>false</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
      <Form8899Filedind>false</Form8899Filedind>
      <Form1098CFiledInd>false</Form1098CFiledInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>false</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>4</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>4</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>false</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>false</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>false</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>true</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>false</ConflictOfInterestPolicyInd>
      <WhistleblowerPolicyInd>false</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>false</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>false</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>false</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>BARABA KOMBEREC</PersonNm>
        <PhoneNum>4065525433</PhoneNum>
        <USAddress>
          <AddressLine1Txt>PO BOX 16601</AddressLine1Txt>
          <CityNm>MISSOULA</CityNm>
          <StateAbbreviationCd>MT</StateAbbreviationCd>
          <ZIPCd>59808</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>KATHY OGREN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ERIC KOMBEREC</PersonNm>
        <TitleTxt>President</TitleTxt>
        <AverageHoursPerWeekRt>30.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>WILLIAM PAULLIN</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PATRICK COLLINS</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>20.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>false</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>210118</AllOtherContributionsAmt>
      <TotalContributionsAmt>210118</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>ADMISSIONS</Desc>
        <BusinessCd>712110</BusinessCd>
        <TotalRevenueColumnAmt>3425</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>3425</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Membership Dues &amp; Assessments</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>5556</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>5556</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>8981</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>1499</TotalRevenueColumnAmt>
        <ExclusionAmt>1499</ExclusionAmt>
      </InvestmentIncomeGrp>
      <IncmFromInvestBondProceedsGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </IncmFromInvestBondProceedsGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </RoyaltiesRevenueGrp>
      <GrossRentsGrp>
        <RealAmt>5400</RealAmt>
      </GrossRentsGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>5400</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>5400</TotalRevenueColumnAmt>
        <ExclusionAmt>5400</ExclusionAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <OtherAmt>237817</OtherAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <OtherAmt>158231</OtherAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <OtherAmt>79586</OtherAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>79586</TotalRevenueColumnAmt>
        <ExclusionAmt>79586</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncmFromFundraisingEvtGrp>
      <NetIncomeFromGamingGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncomeFromGamingGrp>
      <GrossSalesOfInventoryAmt>34153</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>7841</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>26312</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>26312</RelatedOrExemptFuncIncomeAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueTotalAmt>0</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>331896</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>35293</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>86485</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>0</TotalAmt>
      </ForeignGrantsGrp>
      <BenefitsToMembersGrp>
        <TotalAmt>0</TotalAmt>
      </BenefitsToMembersGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>0</TotalAmt>
      </CompCurrentOfcrDirectorsGrp>
      <CompDisqualPersonsGrp>
        <TotalAmt>0</TotalAmt>
      </CompDisqualPersonsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>0</TotalAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>0</TotalAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>0</TotalAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>0</TotalAmt>
      </PayrollTaxesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>3726</TotalAmt>
        <ManagementAndGeneralAmt>3726</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesLobbyingGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLobbyingGrp>
      <FeesForServicesProfFundraising>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesProfFundraising>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>3515</TotalAmt>
        <ProgramServicesAmt>1800</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1715</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>527</TotalAmt>
        <ProgramServicesAmt>527</ProgramServicesAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>1937</TotalAmt>
        <ProgramServicesAmt>919</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1018</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>0</TotalAmt>
      </InformationTechnologyGrp>
      <RoyaltiesGrp>
        <TotalAmt>0</TotalAmt>
      </RoyaltiesGrp>
      <OccupancyGrp>
        <TotalAmt>17981</TotalAmt>
        <ProgramServicesAmt>17981</ProgramServicesAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>0</TotalAmt>
      </TravelGrp>
      <PymtTravelEntrtnmntPubOfclGrp>
        <TotalAmt>0</TotalAmt>
      </PymtTravelEntrtnmntPubOfclGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>0</TotalAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>2233</TotalAmt>
        <ManagementAndGeneralAmt>2233</ManagementAndGeneralAmt>
      </InterestGrp>
      <PaymentsToAffiliatesGrp>
        <TotalAmt>0</TotalAmt>
      </PaymentsToAffiliatesGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>20349</TotalAmt>
        <ProgramServicesAmt>20349</ProgramServicesAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>21605</TotalAmt>
        <ProgramServicesAmt>21605</ProgramServicesAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>FUEL</Desc>
        <TotalAmt>20836</TotalAmt>
        <ProgramServicesAmt>20836</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>AIRPLANE EXPENSES</Desc>
        <TotalAmt>8198</TotalAmt>
        <ProgramServicesAmt>8198</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>FOOD</Desc>
        <TotalAmt>3123</TotalAmt>
        <ProgramServicesAmt>3123</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>EVENT EXPENSES</Desc>
        <TotalAmt>1554</TotalAmt>
        <ProgramServicesAmt>1554</ProgramServicesAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>1284</TotalAmt>
        <ProgramServicesAmt>484</ProgramServicesAmt>
        <ManagementAndGeneralAmt>800</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>106868</TotalAmt>
        <ProgramServicesAmt>97376</ProgramServicesAmt>
        <ManagementAndGeneralAmt>9492</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>109185</BOYAmt>
        <EOYAmt>361600</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>69878</BOYAmt>
        <EOYAmt>70054</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PledgesAndGrantsReceivableGrp>
        <EOYAmt>0</EOYAmt>
      </PledgesAndGrantsReceivableGrp>
      <AccountsReceivableGrp>
        <EOYAmt>0</EOYAmt>
      </AccountsReceivableGrp>
      <ReceivablesFromOfficersEtcGrp>
        <EOYAmt>0</EOYAmt>
      </ReceivablesFromOfficersEtcGrp>
      <RcvblFromDisqualifiedPrsnGrp>
        <EOYAmt>0</EOYAmt>
      </RcvblFromDisqualifiedPrsnGrp>
      <OthNotesLoansReceivableNetGrp>
        <EOYAmt>0</EOYAmt>
      </OthNotesLoansReceivableNetGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>12421</BOYAmt>
        <EOYAmt>21241</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <EOYAmt>0</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>1170689</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>454515</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>878835</BOYAmt>
        <EOYAmt>716174</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <EOYAmt>0</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <EOYAmt>0</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <InvestmentsProgramRelatedGrp>
        <EOYAmt>0</EOYAmt>
      </InvestmentsProgramRelatedGrp>
      <IntangibleAssetsGrp>
        <EOYAmt>0</EOYAmt>
      </IntangibleAssetsGrp>
      <OtherAssetsTotalGrp>
        <EOYAmt>225</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>1070319</BOYAmt>
        <EOYAmt>1169294</EOYAmt>
      </TotalAssetsGrp>
      <MortgNotesPyblScrdInvstPropGrp>
        <BOYAmt>121053</BOYAmt>
      </MortgNotesPyblScrdInvstPropGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>5000</BOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>126053</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
      <RtnEarnEndowmentIncmOthFndsGrp>
        <BOYAmt>944266</BOYAmt>
        <EOYAmt>1169294</EOYAmt>
      </RtnEarnEndowmentIncmOthFndsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>944266</BOYAmt>
        <EOYAmt>1169294</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>1070319</BOYAmt>
        <EOYAmt>1169294</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>225028</ReconcilationRevenueExpnssAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="IRS990ScheduleA" softwareId="24020490" softwareVersionNum="2024v5.2">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>46203</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>185133</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>71026</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>95823</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>210118</CurrentTaxYearAmt>
        <TotalAmt>608303</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>29590</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>49305</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>29236</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>46856</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>48534</CurrentTaxYearAmt>
        <TotalAmt>203521</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <GrossReceiptsNonUnrltBusGrp>
        <TotalAmt>0</TotalAmt>
      </GrossReceiptsNonUnrltBusGrp>
      <TaxRevLeviedOrgnztnlBnft509Grp>
        <TotalAmt>0</TotalAmt>
      </TaxRevLeviedOrgnztnlBnft509Grp>
      <GovtFurnSrvcFcltsVl509Grp>
        <TotalAmt>0</TotalAmt>
      </GovtFurnSrvcFcltsVl509Grp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>75793</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>234438</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>100262</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>142679</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>258652</CurrentTaxYearAmt>
        <TotalAmt>811824</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <TotalAmt>0</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <PublicSupportTotal509Amt>811824</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>299</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>394</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>385</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>315</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1499</CurrentTaxYearAmt>
        <TotalAmt>2892</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <Post1975UBTIGrp>
        <TotalAmt>0</TotalAmt>
      </Post1975UBTIGrp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>299</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>394</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>385</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>315</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1499</CurrentTaxYearAmt>
        <TotalAmt>2892</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <NetIncomeFromOtherUBIGrp>
        <TotalAmt>0</TotalAmt>
      </NetIncomeFromOtherUBIGrp>
      <OtherIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>600</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>206</CurrentTaxYearMinus3YearsAmt>
        <TotalAmt>806</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>76692</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>235038</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>100647</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>142994</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>260151</CurrentTaxYearAmt>
        <TotalAmt>815522</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.99550</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.98800</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00350</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00190</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="IRS990ScheduleB" softwareId="24020490" softwareVersionNum="2024v5.2">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="IRS990ScheduleD" softwareId="24020490" softwareVersionNum="2024v5.2">
      <LandGrp>
        <OtherCostOrOtherBasisAmt>19000</OtherCostOrOtherBasisAmt>
        <BookValueAmt>19000</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>631134</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>364116</DepreciationAmt>
        <BookValueAmt>267018</BookValueAmt>
      </BuildingsGrp>
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>6190</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>1427</DepreciationAmt>
        <BookValueAmt>4763</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>104340</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>88972</DepreciationAmt>
        <BookValueAmt>15368</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>410025</OtherCostOrOtherBasisAmt>
        <BookValueAmt>410025</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>716174</TotalBookValueLandBuildingsAmt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, Line 4: Description of organization's collections and how it furthers its purpose.</FormAndLineReferenceDesc>
        <ExplanationTxt>N92185, A PIPER J3; FRANCIS LUFKIN ORIGINAL 1939 SMOKEJUMPER DISPLAY; HAND CARVED MUSEUM OF MOUNTAIN FLYING CAROUSEL HORSE; MISS MONTANA DC-3 N24320; 1937 HOWARD DGA11; 1931 CURTIS WRIGHT DH60GMW; SMOKEJUMPER DISPLAY.ITEMS ARE MAINTAINED AT THE MUSEUM TO EDUCATE THE PUBLIC ON THE HISTORY OF MOUNTAIN FLYING.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="24020490" softwareVersionNum="2024v5.2">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>A COPY OF THE 990 IS PROVIDED TO EACH BOARD MEMBER PRIOR TO FILING FOR REVIEW.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>