<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001751434</cik>
        <entityName>Harlan Mountain Investments LLC</entityName>
        <issuerAddress>
            <street1>210 E 2ND AVENUE, SUITE 105</street1>
            <city>ROME</city>
            <stateOrCountry>GA</stateOrCountry>
            <stateOrCountryDescription>GEORGIA</stateOrCountryDescription>
            <zipCode>30161</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>7062376100</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Limited Liability Company</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2018</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Bryan</firstName>
                <lastName>Kelley</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>210 E 2ND AVENUE</street1>
                <street2>Suite 105</street2>
                <city>ROME</city>
                <stateOrCountry>GA</stateOrCountry>
                <stateOrCountryDescription>GEORGIA</stateOrCountryDescription>
                <zipCode>30161</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ronald</firstName>
                <lastName>Wallace</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>210 E 2ND AVENUE</street1>
                <street2>Suite 105</street2>
                <city>ROME</city>
                <stateOrCountry>GA</stateOrCountry>
                <stateOrCountryDescription>GEORGIA</stateOrCountryDescription>
                <zipCode>30161</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Other Real Estate</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001751434-18-000001</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <yetToOccur>true</yetToOccur>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>119400</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>Dempsey Lord Smith, LLC</recipientName>
                <recipientCRDNumber>141238</recipientCRDNumber>
                <associatedBDName>Dempsey Lord Smith, LLC</associatedBDName>
                <associatedBDCRDNumber>141238</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>901 N Broad Street</street1>
                    <street2>Suite 400</street2>
                    <city>Rome</city>
                    <stateOrCountry>GA</stateOrCountry>
                    <stateOrCountryDescription>GEORGIA</stateOrCountryDescription>
                    <zipCode>30161</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <value>All States</value>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>Cabin Securities, Inc.</recipientName>
                <recipientCRDNumber>137608</recipientCRDNumber>
                <associatedBDName>Cabin Securities, Inc.</associatedBDName>
                <associatedBDCRDNumber>137608</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>6240 W. 135th Street</street1>
                    <street2>Suite 214</street2>
                    <city>Overland Park</city>
                    <stateOrCountry>KS</stateOrCountry>
                    <stateOrCountryDescription>KANSAS</stateOrCountryDescription>
                    <zipCode>66223</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>CA</state>
                    <description>CALIFORNIA</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>Center Street Securities, Inc.</recipientName>
                <recipientCRDNumber>26898</recipientCRDNumber>
                <associatedBDName>Center Street Securities, Inc.</associatedBDName>
                <associatedBDCRDNumber>26898</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>2740 Old Elm Pike</street1>
                    <street2>Suite 201</street2>
                    <city>Nashville</city>
                    <stateOrCountry>TN</stateOrCountry>
                    <stateOrCountryDescription>TENNESSEE</stateOrCountryDescription>
                    <zipCode>37214</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>AZ</state>
                    <description>ARIZONA</description>
                    <state>TN</state>
                    <description>TENNESSEE</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>Sandlapper Securities, LLC</recipientName>
                <recipientCRDNumber>137906</recipientCRDNumber>
                <associatedBDName>Sandlapper Securities, LLC</associatedBDName>
                <associatedBDCRDNumber>137906</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>800 E North Street</street1>
                    <street2>2nd Floor</street2>
                    <city>Greenville</city>
                    <stateOrCountry>SC</stateOrCountry>
                    <stateOrCountryDescription>SOUTH CAROLINA</stateOrCountryDescription>
                    <zipCode>30161</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>AR</state>
                    <description>ARKANSAS</description>
                    <state>CA</state>
                    <description>CALIFORNIA</description>
                    <state>FL</state>
                    <description>FLORIDA</description>
                    <state>NY</state>
                    <description>NEW YORK</description>
                    <state>OH</state>
                    <description>OHIO</description>
                    <state>PA</state>
                    <description>PENNSYLVANIA</description>
                    <state>SC</state>
                    <description>SOUTH CAROLINA</description>
                    <state>WI</state>
                    <description>WISCONSIN</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>Titan Securities, Inc</recipientName>
                <recipientCRDNumber>131392</recipientCRDNumber>
                <associatedBDName>Titan Securities, Inc</associatedBDName>
                <associatedBDCRDNumber>131392</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>16775 Addison Road</street1>
                    <street2>Suite 202</street2>
                    <city>Addison</city>
                    <stateOrCountry>TX</stateOrCountry>
                    <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                    <zipCode>75001</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>TX</state>
                    <description>TEXAS</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>11701200</totalOfferingAmount>
            <totalAmountSold>0</totalAmountSold>
            <totalRemaining>11701200</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>0</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>1170120</dollarAmount>
                <isEstimate>true</isEstimate>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>2685000</dollarAmount>
                <isEstimate>true</isEstimate>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Harlan Mountain Investments LLC</issuerName>
                <signatureName>Brian Kelley</signatureName>
                <nameOfSigner>Bryan Kelley</nameOfSigner>
                <signatureTitle>Executive Officer</signatureTitle>
                <signatureDate>2018-10-16</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
