<SUBMISSION>
<ACCESSION-NUMBER>0001130464-04-000278
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20040812
<FILING-DATE>20040816
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>BLACK HILLS CORP /SD/
<CIK>0001130464
<ASSIGNED-SIC>4911
<IRS-NUMBER>460458824
<STATE-OF-INCORPORATION>SD
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>625 9TH STREET
<STREET2>PO BOX 1400
<CITY>RAPID CITY
<STATE>SD
<ZIP>57709
<PHONE>6057212343
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>625 9TH STREET
<STREET2>PO BOX 1400
<CITY>RAPID
<STATE>SD
<ZIP>57709
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>BLACK HILLS HOLDING CORP
<DATE-CHANGED>20001222
</FORMER-COMPANY>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>NEWLIN STEPHEN D
<CIK>0001229313
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-31303
<FILM-NUMBER>04978354
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>370 WABASHA STREET NORTH
<CITY>ST PAUL
<STATE>MN
<ZIP>65102
<PHONE>6512932233
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>22 W FRONTAGE ROAD
<CITY>NORTHFIELD
<STATE>IL
<ZIP>60093
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>new259.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-08-12</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001130464</issuerCik>
        <issuerName>BLACK HILLS CORP /SD/</issuerName>
        <issuerTradingSymbol>BKH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001229313</rptOwnerCik>
            <rptOwnerName>NEWLIN STEPHEN D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>PO BOX 1400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RAPID CITY</rptOwnerCity>
            <rptOwnerState>SD</rptOwnerState>
            <rptOwnerZipCode>577011400</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2004-08-12</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>26.70</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2399.75</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <ownerSignature>
        <signatureName>By: Roxann R. Basham, by power of attorney</signatureName>
        <signatureDate>2004-08-16</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
