    <SEC-DOCUMENT>0001654954-18-003211-index.html : 20180327
    <SEC-HEADER>0001654954-18-003211.hdr.sgml : 20180327
    <ACCEPTANCE-DATETIME>20180327140637
    ACCESSION NUMBER:		0001654954-18-003211
    CONFORMED SUBMISSION TYPE:	6-K
    PUBLIC DOCUMENT COUNT:		10
    CONFORMED PERIOD OF REPORT:	20171231
    FILED AS OF DATE:		20180327
    DATE AS OF CHANGE:		20180327

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			DENISON MINES CORP.
    		CENTRAL INDEX KEY:			0001063259
    		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS METAL ORES [1090]
    		IRS NUMBER:				000000000
    		STATE OF INCORPORATION:			A6
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		6-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-33414
    		FILM NUMBER:		18714937

    	BUSINESS ADDRESS:
    		STREET 1:		40 UNIVERSITY AVE., SUITE 1100
    		CITY:			TORONTO
    		STATE:			A6
    		ZIP:			M5J 1T1
    		BUSINESS PHONE:		(416) 979-1991

    	MAIL ADDRESS:
    		STREET 1:		40 UNIVERSITY AVE., SUITE 1100
    		CITY:			TORONTO
    		STATE:			A6
    		ZIP:			M5J 1T1

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	INTERNATIONAL URANIUM CORP
    		DATE OF NAME CHANGE:	19980603
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>6-K
    <SEQUENCE>1
    <FILENAME>form6k-annualreport.htm
    <DESCRIPTION>FORM 6K DATED MARCH 27, 2018
    <TEXT>
    Document 1 - file: form6k-annualreport.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>a2017-12dmcmdaacversion.htm
    <DESCRIPTION>2017 ANNUAL REPORT
    <TEXT>
    Document 2 - file: a2017-12dmcmdaacversion.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>a2017-12dmcmdaacversion000.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>a2017-12dmcmdaacversion001.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
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    <DESCRIPTION>IMAGE
    <TEXT>
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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>annualreportbackpage.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 6 - file: annualreportbackpage.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>backcover.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 7 - file: backcover.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>denisonlogo.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 8 - file: denisonlogo.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>publication2read-only.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>pwc.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 10 - file: pwc.jpg

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    </SEC-DOCUMENT>