    <SEC-DOCUMENT>0000950170-22-014832-index.html : 20221012
    <SEC-HEADER>0000950170-22-014832.hdr.sgml : 20221012
    <ACCEPTANCE-DATETIME>20220804164936
    <PRIVATE-TO-PUBLIC>
    ACCESSION NUMBER:		0000950170-22-014832
    CONFORMED SUBMISSION TYPE:	CORRESP
    PUBLIC DOCUMENT COUNT:		2
    FILED AS OF DATE:		20220804

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			MARTIN MARIETTA MATERIALS INC
    		CENTRAL INDEX KEY:			0000916076
    		STANDARD INDUSTRIAL CLASSIFICATION:	MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400]
    		IRS NUMBER:				561848578
    		STATE OF INCORPORATION:			NC
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		CORRESP

    	BUSINESS ADDRESS:
    		STREET 1:		4123 PARKLAKE AVE
    		CITY:			RALEIGH
    		STATE:			NC
    		ZIP:			27612
    		BUSINESS PHONE:		919-781-4550

    	MAIL ADDRESS:
    		STREET 1:		4123 PARKLAKE AVE
    		CITY:			RALEIGH
    		STATE:			NC
    		ZIP:			27612
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>CORRESP
    <SEQUENCE>1
    <FILENAME>filename1.htm
    <TEXT>
    Document 1 - file: filename1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>img223338047_0.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: img223338047_0.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>