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<Return returnVersion="2015v3.0" xmlns="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2017-06-13T15:53:19-07:00</ReturnTs>
    <TaxPeriodEndDt>2016-07-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Eva T Holm CPA</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>26 Jordan Avenue</AddressLine1Txt>
        <CityNm>San Anselmo</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>94960</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2015-08-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>460608637</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Hidden Valley PTO</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>HIDD</BusinessNameControlTxt>
      <USAddress>
        <AddressLine1Txt>46 Green Valley Court</AddressLine1Txt>
        <CityNm>San Anselmo</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>94960</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Jeanine Dixon</PersonNm>
      <PersonTitleTxt>Treasurer</PersonTitleTxt>
      <PhoneNum>4154887721</PhoneNum>
      <SignatureDt>2017-06-13</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>Eva T Holm CPA</PreparerPersonNm>
      <PTIN>P00438495</PTIN>
      <PhoneNum>4152970752</PhoneNum>
      <PreparationDt>2017-06-13</PreparationDt>
      <SelfEmployedInd>X</SelfEmployedInd>
    </PreparerPersonGrp>
    <TaxYr>2015</TaxYr>
    <BuildTS>2021-01-29 14:40:06Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="4">
    <IRS990EZ documentId="IRS990EZ">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <Organization501c3Ind referenceDocumentId="990A">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>97547</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>4850</ContributionsGiftsGrantsEtcAmt>
      <InvestmentIncomeAmt>28</InvestmentIncomeAmt>
      <FundraisingGrossIncomeAmt>92669</FundraisingGrossIncomeAmt>
      <SpecialEventsDirectExpensesAmt>21880</SpecialEventsDirectExpensesAmt>
      <SpecialEventsNetIncomeLossAmt>70789</SpecialEventsNetIncomeLossAmt>
      <TotalRevenueAmt>75667</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>88958</GrantsAndSimilarAmountsPaidAmt>
      <PrintingPublicationsPostageAmt>474</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>6610</OtherExpensesTotalAmt>
      <TotalExpensesAmt>96042</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-20375</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>90909</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>100</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>70634</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>89516</BOYAmt>
        <EOYAmt>71663</EOYAmt>
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      <LandAndBuildingsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </LandAndBuildingsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>20818</BOYAmt>
        <EOYAmt>18972</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>110334</BOYAmt>
        <EOYAmt>90635</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>19425</BOYAmt>
        <EOYAmt>20001</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>90909</BOYAmt>
        <EOYAmt>70634</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>Promote parentschool interaction</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Fund parentstudent and teacher activities</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>83062</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>83062</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Jeanine Dixon</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Dodie Baker</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Kathleen Holtzer</PersonNm>
        <TitleTxt>Secretary</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Kristi Hinkelman</PersonNm>
        <TitleTxt>President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>CA</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>Jeanine Dixon</PersonNm>
        <USAddress>
          <AddressLine1Txt>46 Green Valley Court</AddressLine1Txt>
          <CityNm>San Anselmo</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94960</ZIPCd>
        </USAddress>
        <PhoneNum>4154887721</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>true</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="990A">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus2YearsAmt>9446</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>10768</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>4850</CurrentTaxYearAmt>
        <TotalAmt>25064</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus2YearsAmt>9446</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>10768</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>4850</CurrentTaxYearAmt>
        <TotalAmt>25064</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>25064</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus2YearsAmt>6</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>4</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>28</CurrentTaxYearAmt>
        <TotalAmt>38</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>25102</TotalSupportAmt>
      <First5Years170Ind>X</First5Years170Ind>
      <PublicSupportCY170Pct>0.00000</PublicSupportCY170Pct>
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      <FundraisingEventInformationGrp>
        <Event1Nm>Fun Run</Event1Nm>
        <GrossReceiptsEvent1Amt>74662</GrossReceiptsEvent1Amt>
        <GrossRevenueEvent1Amt>74662</GrossRevenueEvent1Amt>
        <NonCashPrizesEvent1Amt>2455</NonCashPrizesEvent1Amt>
        <FoodAndBeverageEvent1Amt>28</FoodAndBeverageEvent1Amt>
        <OtherDirectExpensesEvent1Amt>2994</OtherDirectExpensesEvent1Amt>
        <Event2Nm>None</Event2Nm>
        <GrossReceiptsTotalAmt>74662</GrossReceiptsTotalAmt>
        <GrossRevenueTotalEventsAmt>74662</GrossRevenueTotalEventsAmt>
        <NonCashPrizesTotalEventsAmt>2455</NonCashPrizesTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>28</FoodAndBeverageTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>2994</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>5477</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>69185</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleO documentId="990O">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>List of grants and similar amounts paid Part I line 10</FormAndLineReferenceDesc>
        <ExplanationTxt>Activity Parent,teacher and student activity Grantee Hidden Valley Elementary School Street 46 Green Valley Court City, State, Zip San Anselmo, CA 94960Amount 83,062Activity Yes The Ross Valley Schools Foundation Street PO Box 2 City, State, Zip San Anselmo, CA 94979Amount 5,896</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Description of other expenses Part I line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Description AmountDepreciation from 4562 5,381Office supplies 176Bank charges 94Insurance 490Volunteer appreciation 319License and fees 150</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other changes in net assets or fund balances Part I line 20</FormAndLineReferenceDesc>
        <ExplanationTxt>Description AmountPPA to unrestricted assets 100</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Description of other assets Part II line 24</FormAndLineReferenceDesc>
        <ExplanationTxt>Category Beginning of Year End of YearFixed assets (net of acc depr) 20,818 18,972</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Description of total liabilities Part II line 26</FormAndLineReferenceDesc>
        <ExplanationTxt>Category Beginning of Year End of YearRestricted funds payable 19,425 20,001</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>