﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2024v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-08-13T15:53:56-04:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>208019714</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>JDS PROFESSIONAL GROUP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>10303 E DRY CREEK RD STE 400</AddressLine1Txt>
        <CityNm>ENGLEWOOD</CityNm>
        <StateAbbreviationCd>CO</StateAbbreviationCd>
        <ZIPCd>80112</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>933793784</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>COLORADO NATURE LEAGUE</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>COLO</BusinessNameControlTxt>
      <PhoneNum>3037753539</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO BOX 18063</AddressLine1Txt>
        <CityNm>DENVER</CityNm>
        <StateAbbreviationCd>CO</StateAbbreviationCd>
        <ZIPCd>80218</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>JEN CLANAHAN</PersonNm>
      <PersonTitleTxt>EXECUTIVE DIRECTOR</PersonTitleTxt>
      <PhoneNum>3037753539</PhoneNum>
      <SignatureDt>2025-08-13</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>LORI B BAUER CPA</PreparerPersonNm>
      <PTIN>P01260252</PTIN>
      <PhoneNum>3037710123</PhoneNum>
      <PreparationDt>2025-08-13</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990EZ documentId="RetDoc2" referenceDocumentId="RetDoc4">
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <WebsiteAddressTxt>CONATURELEAGUE.ORG</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc5">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>180546</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>180542</ContributionsGiftsGrantsEtcAmt>
      <InvestmentIncomeAmt>4</InvestmentIncomeAmt>
      <TotalRevenueAmt>180546</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>132961</FeesAndOtherPymtToIndCntrctAmt>
      <OtherExpensesTotalAmt>4520</OtherExpensesTotalAmt>
      <TotalExpensesAmt>137481</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>43065</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>2610</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>45675</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>8610</BOYAmt>
        <EOYAmt>45675</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>8610</BOYAmt>
        <EOYAmt>45675</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>6000</BOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>2610</BOYAmt>
        <EOYAmt>45675</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>TO PROTECT, CONSERVE, AND RESTORE COLORADO'S NATIVE WILDLIFE AND HABITATS. WE CHAMPION SCIENCE-BASED, INNOVATIVE, COLLABORATIVE SOLUTIONS FOR MANAGING COLORADO'S ICONIC WILDLIFE AND BIODIVERSITY, PROTECTING THEM FROM THREATS LIKE HABITAT LOSS, CLIMATE CHANGE, AND WILDFIRES. OUR VISION IS A COLORADO WHERE WILDLIFE AND HABITATS THRIVE TODAY AND FOR FUTURE GENERATIONS.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>-STAKEHOLDER ENGAGEMENT AND COLLABORATION: WE ORGANIZED OVER 50 STAKEHOLDER MEETINGS TO FOSTER COLLABORATION AMONG CONSERVATION ORGANIZATIONS, SCIENTISTS, AND POLICYMAKERS, DEVELOPING UNIFIED STRATEGIES FOR BIODIVERSITY AND WILDLIFE PROTECTION, CREATING A COALITION OF 25+ ORGANIZATIONS AND EXPERTS ACTIVELY ENGAGED IN ALIGNED CONSERVATION EFFORTS. . -POLICY ORGANIZING &amp; CONVENING: THE POLICY COMMITTEE CONDUCTED 12 MEETINGS TO DEVELOP ACTIONABLE RECOMMENDATIONS, WHICH INFORMED CONSERVATION POLICY, ADVOCACY INITIATIVES, AND WAS SHARED WITH THOUGHT LEADERS. . -PUBLIC RELATIONS &amp; COMMUNICATIONS: THROUGH COMMUNICATIONS EFFORT WE ENGAGED WITH THE GENERAL PUBLIC AND WILDLIFE PROGRAM MANAGERS. THIS WORK ALLOWED US TO COORDINATE MESSAGING, DISSEMINATE EDUCATIONAL MATERIALS, AND PROMOTE SCIENCE-DRIVEN WILDLIFE MANAGEMENT PRACTICES. FACT SHEETS, OP-EDS, AND INFOGRAPHICS, WERE DEVELOPED AND SHARED PUBLICLY. . WE ARE WORKING ON A STRONG FOUNDATION FOR SCIENCE-DRIVEN WILDLIFE MANAGEMENT. THROUGH COLLABORATION, SCIENTIFIC RESEARCH, EFFORTS TO ADDRESS CRITICAL THREATS, AND PUBLIC EDUCATION, WE ARE BUILDING A SUSTAINABLE FUTURE FOR COLORADO'S ICONIC SPECIES AND ECOSYSTEMS, ENSURING THAT NATIVE WILDLIFE THRIVES FOR GENERATIONS TO COME.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>108877</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>108877</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>AUBYN ROYALL</PersonNm>
        <TitleTxt>CHAIR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LINDSAY LARRIS</PersonNm>
        <TitleTxt>SECRETARY/TR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ERIC MOLVAR</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JIM ALEXEE</PersonNm>
        <TitleTxt>EXECUTIVE DI</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>20.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>52500</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd referenceDocumentId="RetDoc3">false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <PersonNm>ORGANIZATION</PersonNm>
        <USAddress>
          <AddressLine1Txt>PO BOX 18063</AddressLine1Txt>
          <CityNm>DENVER</CityNm>
          <StateAbbreviationCd>CO</StateAbbreviationCd>
          <ZIPCd>80218</ZIPCd>
        </USAddress>
        <PhoneNum>3037753539</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd referenceDocumentId="RetDoc3">false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd referenceDocumentId="RetDoc3">true</LobbyingActivitiesInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>true</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="RetDoc5">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus1YearAmt>35000</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>180542</CurrentTaxYearAmt>
        <TotalAmt>215542</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <Total509Grp>
        <CurrentTaxYearMinus1YearAmt>35000</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>180542</CurrentTaxYearAmt>
        <TotalAmt>215542</TotalAmt>
      </Total509Grp>
      <PublicSupportTotal509Amt>215542</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearAmt>4</CurrentTaxYearAmt>
        <TotalAmt>4</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearAmt>4</CurrentTaxYearAmt>
        <TotalAmt>4</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus1YearAmt>35000</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>180546</CurrentTaxYearAmt>
        <TotalAmt>215546</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>1.00000</PublicSupportCY509Pct>
      <InvestmentIncomeCYPct>0.00000</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00000</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1">
      <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>
    <IRS990ScheduleC documentId="RetDoc3">
      <VolunteersInd>false</VolunteersInd>
      <PaidStaffOrManagementInd>true</PaidStaffOrManagementInd>
      <MediaAdvertisementsInd>false</MediaAdvertisementsInd>
      <MailingsMembersInd>false</MailingsMembersInd>
      <PublicationsOrBroadcastInd>false</PublicationsOrBroadcastInd>
      <GrantsOtherOrganizationsInd>false</GrantsOtherOrganizationsInd>
      <DirectContactLegislatorsInd>true</DirectContactLegislatorsInd>
      <DirectContactLegislatorsAmt>6150</DirectContactLegislatorsAmt>
      <RalliesDemonstrationsInd>false</RalliesDemonstrationsInd>
      <OtherActivitiesInd>false</OtherActivitiesInd>
      <TotalLobbyingExpendituresAmt>6150</TotalLobbyingExpendituresAmt>
      <NotDescribedSection501c3Ind>false</NotDescribedSection501c3Ind>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE C, PART II-B, LINE 1</FormAndLineReferenceDesc>
        <ExplanationTxt>LOBBYING ACTIVITIES WERE CARRIED OUT BY BOTH THE EXECUTIVE DIRECTOR AND A HIRED LOBBYING FIRM. LOBBYING ACTIVITIES INCLUDED CONVERSATIONS, WRITTEN AND VERBAL, WITH COLORADO LEGISLATORS AND THEIR STAFF THAT EXPRESSED A POSITION ON LEGISLATION, AS WELL AS VOTES TO CONFIRM GUBERNATORIAL NOMINEES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleC>
    <IRS990ScheduleO documentId="RetDoc4">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES PRINTING &amp; SUPPLIES 99 SUBSCRIPTIONS 117 OFFICE SUPPLIES AND EXPENSES 182 SOFTWARE &amp; TECHNOLOGY 244 TRAVEL &amp; PARKING 1,856 MEALS AND MEETINGS 1,967 BANK CHARGES 55 TOTAL 4,520</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 26</FormAndLineReferenceDesc>
        <ExplanationTxt>ACCOUNTS PAYABLE AND ACCRUED EXPENSES 6,000 0</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>TO PROTECT, CONSERVE, AND RESTORE COLORADO'S NATIVE WILDLIFE AND HABITATS. WE CHAMPION SCIENCE-BASED, INNOVATIVE, COLLABORATIVE SOLUTIONS FOR MANAGING COLORADO'S ICONIC WILDLIFE AND BIODIVERSITY, PROTECTING THEM FROM THREATS LIKE HABITAT LOSS, CLIMATE CHANGE, AND WILDFIRES. OUR VISION IS A COLORADO WHERE WILDLIFE AND HABITATS THRIVE TODAY AND FOR FUTURE GENERATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III, LINE 28</FormAndLineReferenceDesc>
        <ExplanationTxt>-STAKEHOLDER ENGAGEMENT AND COLLABORATION: WE ORGANIZED OVER 50 STAKEHOLDER MEETINGS TO FOSTER COLLABORATION AMONG CONSERVATION ORGANIZATIONS, SCIENTISTS, AND POLICYMAKERS, DEVELOPING UNIFIED STRATEGIES FOR BIODIVERSITY AND WILDLIFE PROTECTION, CREATING A COALITION OF 25+ ORGANIZATIONS AND EXPERTS ACTIVELY ENGAGED IN ALIGNED CONSERVATION EFFORTS. . -POLICY ORGANIZING &amp; CONVENING: THE POLICY COMMITTEE CONDUCTED 12 MEETINGS TO DEVELOP ACTIONABLE RECOMMENDATIONS, WHICH INFORMED CONSERVATION POLICY, ADVOCACY INITIATIVES, AND WAS SHARED WITH THOUGHT LEADERS. . -PUBLIC RELATIONS &amp; COMMUNICATIONS: THROUGH COMMUNICATIONS EFFORT WE ENGAGED WITH THE GENERAL PUBLIC AND WILDLIFE PROGRAM MANAGERS. THIS WORK ALLOWED US TO COORDINATE MESSAGING, DISSEMINATE EDUCATIONAL MATERIALS, AND PROMOTE SCIENCE-DRIVEN WILDLIFE MANAGEMENT PRACTICES. FACT SHEETS, OP-EDS, AND INFOGRAPHICS, WERE DEVELOPED AND SHARED PUBLICLY. . WE ARE WORKING ON A STRONG FOUNDATION FOR SCIENCE-DRIVEN WILDLIFE MANAGEMENT. THROUGH COLLABORATION, SCIENTIFIC RESEARCH, EFFORTS TO ADDRESS CRITICAL THREATS, AND PUBLIC EDUCATION, WE ARE BUILDING A SUSTAINABLE FUTURE FOR COLORADO'S ICONIC SPECIES AND ECOSYSTEMS, ENSURING THAT NATIVE WILDLIFE THRIVES FOR GENERATIONS TO COME.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>