-----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,
 IomK2dCRbUGv7LSdyBQFNxGn2+d8JSmHUqjf6dvFPUZRxwXhE+Th1eiqdx+hubU6
 yc56Mr2aFShXF1VUQZHZfg==

<SEC-DOCUMENT>0000315066-98-001488.txt : 19980511
<SEC-HEADER>0000315066-98-001488.hdr.sgml : 19980511
ACCESSION NUMBER:		0000315066-98-001488
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		19980508
SROS:			NYSE

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CALMAT CO
		CENTRAL INDEX KEY:			0000023533
		STANDARD INDUSTRIAL CLASSIFICATION:	MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400]
		IRS NUMBER:				950645790
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		
		SEC FILE NUMBER:	005-13647
		FILM NUMBER:		98614150

	BUSINESS ADDRESS:	
		STREET 1:		3200 SAN FERNANDO RD
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90065
		BUSINESS PHONE:		2132582777

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CONROCK CO
		DATE OF NAME CHANGE:	19840712

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CONSOLIDATED ROCK PRODUCTS CO
		DATE OF NAME CHANGE:	19720915

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FMR CORP
		CENTRAL INDEX KEY:			0000315066
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				161144965
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		82 DEVONSHIRE ST
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02109
		BUSINESS PHONE:		6175706339

	MAIL ADDRESS:	
		STREET 1:		82 DEVONSHIRE STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02109
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>000031506698001488-001-seq1-sc-13g-a.txt
<DESCRIPTION>SCHEDULE 13G - 5-10-98 - CALMAT COMPANY
</DOCUMENT>
</SUBMISSION>