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        <PoolFinancingInd>false</PoolFinancingInd>
      </TaxExemptBondsIssuesGrp>
      <TaxExemptBondsProceedsGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <TotalProceedsAmt>66013666</TotalProceedsAmt>
        <InReserveFundAmt>4096137</InReserveFundAmt>
        <CapitalizedInterestAmt>6974067</CapitalizedInterestAmt>
        <IssuanceCostsFromProceedsAmt>74152</IssuanceCostsFromProceedsAmt>
        <CapitalExpendituresAmt>50837718</CapitalExpendituresAmt>
        <OtherSpentProceedsAmt>4141902</OtherSpentProceedsAmt>
        <SubstantialCompletionYr>2025</SubstantialCompletionYr>
        <RefundingTaxExemptBondsInd>false</RefundingTaxExemptBondsInd>
        <RefundingTaxableBondsInd>true</RefundingTaxableBondsInd>
        <FinalAllocationMadeInd>false</FinalAllocationMadeInd>
        <AdequateBooksAndRecMaintInd>true</AdequateBooksAndRecMaintInd>
      </TaxExemptBondsProceedsGrp>
      <TaxExemptBondsProceedsGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <TotalProceedsAmt>39890000</TotalProceedsAmt>
        <InReserveFundAmt>2002959</InReserveFundAmt>
        <IssuanceCostsFromProceedsAmt>760000</IssuanceCostsFromProceedsAmt>
        <CapitalExpendituresAmt>16790959</CapitalExpendituresAmt>
        <UnspentAmt>20336083</UnspentAmt>
        <RefundingTaxExemptBondsInd>false</RefundingTaxExemptBondsInd>
        <RefundingTaxableBondsInd>false</RefundingTaxableBondsInd>
        <FinalAllocationMadeInd>false</FinalAllocationMadeInd>
        <AdequateBooksAndRecMaintInd>true</AdequateBooksAndRecMaintInd>
      </TaxExemptBondsProceedsGrp>
      <TaxExemptBondsPrivateBusUseGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <OwningBondFinancedPropertyInd>false</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>true</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>true</MgmtContractBondFincdPropInd>
        <EngageBondCounselContractsInd>true</EngageBondCounselContractsInd>
        <AnyResearchAgreementsInd>false</AnyResearchAgreementsInd>
        <BondIssMeetPrvtSecPymtTestInd>false</BondIssMeetPrvtSecPymtTestInd>
        <ChangeInUseBondFinancedPropInd>false</ChangeInUseBondFinancedPropInd>
        <ProcsNonqualifiedBondRemdtdInd>true</ProcsNonqualifiedBondRemdtdInd>
      </TaxExemptBondsPrivateBusUseGrp>
      <TaxExemptBondsPrivateBusUseGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <OwningBondFinancedPropertyInd>false</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>true</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>true</MgmtContractBondFincdPropInd>
        <EngageBondCounselContractsInd>true</EngageBondCounselContractsInd>
        <AnyResearchAgreementsInd>false</AnyResearchAgreementsInd>
        <BondIssMeetPrvtSecPymtTestInd>false</BondIssMeetPrvtSecPymtTestInd>
        <ChangeInUseBondFinancedPropInd>false</ChangeInUseBondFinancedPropInd>
        <ProcsNonqualifiedBondRemdtdInd>true</ProcsNonqualifiedBondRemdtdInd>
      </TaxExemptBondsPrivateBusUseGrp>
      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <Form8038TFiledInd>false</Form8038TFiledInd>
        <RebateNotDueYetInd>true</RebateNotDueYetInd>
        <HedgeIdentifiedInBksAndRecInd>false</HedgeIdentifiedInBksAndRecInd>
        <GrossProceedsInvestedInGICInd>false</GrossProceedsInvestedInGICInd>
        <GrossProceedsInvestedInd>true</GrossProceedsInvestedInd>
        <WrittenProcToMonitorReqsInd>true</WrittenProcToMonitorReqsInd>
      </TaxExemptBondsArbitrageGrp>
      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <Form8038TFiledInd>false</Form8038TFiledInd>
        <RebateNotDueYetInd>true</RebateNotDueYetInd>
        <HedgeIdentifiedInBksAndRecInd>false</HedgeIdentifiedInBksAndRecInd>
        <GrossProceedsInvestedInGICInd>false</GrossProceedsInvestedInGICInd>
        <GrossProceedsInvestedInd>false</GrossProceedsInvestedInd>
        <WrittenProcToMonitorReqsInd>true</WrittenProcToMonitorReqsInd>
      </TaxExemptBondsArbitrageGrp>
      <ProceduresCorrectiveActionGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <ProceduresCorrectiveActionInd>true</ProceduresCorrectiveActionInd>
      </ProceduresCorrectiveActionGrp>
      <ProceduresCorrectiveActionGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <ProceduresCorrectiveActionInd>true</ProceduresCorrectiveActionInd>
      </ProceduresCorrectiveActionGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI</FormAndLineReferenceDesc>
        <ExplanationTxt>Part I Line A, Column (f): Fund the acquisition, construction and installation of communication lines and related improvements and facilities to expand the Bozeman Fiber Network; refund a taxable loan dated September 24, 2015.Part I Line B, Column (f): Fund the acquisition, construction and installation of communication lines and related improvements and facilities to expand the Bozeman Fiber Network.Part II, Line 3, Column A: Total proceeds do not equal the issue price due to investment earnings.Part II, Line 3, Column B: Total proceeds do not equal the issue price due to investment earnings.Part II, Line 11, Column A: $3,655,214.74 of proceeds of the Series 2021A Bonds were used to refund a taxable loan and $486,687.28 of investment proceeds of the Series 2021A Bonds were used to pay interest on the Bonds after the project construction period.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleK>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="25022934" softwareVersionNum="2025v4.1">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS REVIEWED BY ALL BOARD MEMBERS AT A MEETING PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization requires its officers and directors to complete a written conflict of interest disclosure annually. Management and the Board review the disclosures, and any director with a conflict regarding a specific matter recuses himself or herself from the related discussion and vote.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS ORGANIZATIONAL DOCUMENTS AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XII, Line 2c</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS HAS THE RESPONSIBILITY OF SELECTING AN INDEPENDENT ACCOUNTANT TO PERFORM FINANCIAL STATEMENT ASSURANCE SERVICES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 5-7 - CAPITALIZED LABOR COSTS</FormAndLineReferenceDesc>
        <ExplanationTxt>The Organization capitalizes the portion of its labor costs related to construction of the fiber network. Wages reported on Form 990 Part IX do not reflect full payroll costs as some costs are reported as assets on Form 990 Part X line 10.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 8 - PRIOR PERIOD ADJUSTMENTS</FormAndLineReferenceDesc>
        <ExplanationTxt>During the year ended December 31, 2025, the Organization determined that under ASC Topic 835-20-30-11, when a qualifying asset is financed with the proceeds of a tax-exempt borrowing that is externally restricted to acquiring specified qualifying assets or servicing the related debt, the amount of the interest to be capitalized is the total interest cost on that borrowing reduced by the interest earned onrelated interest-bearing investments purchased with those tax-exempt proceeds. This correction resulted in a prior period adjustment in the amount of $1,519,088 for the amount of interest earned on investments purchased with tax-exempt proceeds and $38,167 for the accumulated depreciation recorded on capitalized interest through December 31, 2024.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE A (FORM 990), PART III, SECTION A</FormAndLineReferenceDesc>
        <ExplanationTxt>In preparing the Organizations 2025 Schedule A (Form 990), Part III, Section A, the Organization recomputed the amounts reported on line 7b for tax years 2021 through 2024 to properly apply the limitation under IRC Section 509(a)(2) for amounts in excess of the greater of $5,000 or 1% of total support from any one payor. The prior-year Forms 990 are not being amended because the correction did not affect the Organizations public charity status under IRC Section 509(a)(2) during those years. The corrected amounts are reflected solely in the 2025 Schedule A five-year public support computation.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>