-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 DsGfPYHaEchxVOREDdfp5bpkZ68E/YDGioPTwFIl2+Yhz0k4iZqKm1evJBzcijXe
 0HPG4WvnpfjqZKWDepYpFQ==

<SEC-DOCUMENT>0000914190-09-000349.txt : 20090401
<SEC-HEADER>0000914190-09-000349.hdr.sgml : 20090401
<ACCEPTANCE-DATETIME>20090401123633
ACCESSION NUMBER:		0000914190-09-000349
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090331
FILED AS OF DATE:		20090401
DATE AS OF CHANGE:		20090401

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mauch Sidney A
		CENTRAL INDEX KEY:			0001458611

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-52033
		FILM NUMBER:		09722115

	MAIL ADDRESS:	
		STREET 1:		712 WYNDEMERE DRIVE
		CITY:			WEST FARGO
		STATE:			ND
		ZIP:			58078

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RED TRAIL ENERGY, LLC
		CENTRAL INDEX KEY:			0001359687
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		IRS NUMBER:				760742311
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		PO BOX 11
		STREET 2:		3682 HWY 8 SOUTH
		CITY:			RICHARDTON
		STATE:			ND
		ZIP:			58652
		BUSINESS PHONE:		701-974-3308

	MAIL ADDRESS:	
		STREET 1:		PO BOX 11
		STREET 2:		3682 HWY 8 SOUTH
		CITY:			RICHARDTON
		STATE:			ND
		ZIP:			58652
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2009-03-31</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001359687</issuerCik>
        <issuerName>RED TRAIL ENERGY, LLC</issuerName>
        <issuerTradingSymbol>NONE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001458611</rptOwnerCik>
            <rptOwnerName>Mauch Sidney A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>712 WYNDEMERE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WEST FARGO</rptOwnerCity>
            <rptOwnerState>ND</rptOwnerState>
            <rptOwnerZipCode>58078</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Membership Units</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Sidney A. Mauch</signatureName>
        <signatureDate>2009-04-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----