U S GEOLOGICAL SURVEY 
CEMENT PLANTS 
LEHIGH P. C. CO. (mill F) 
:: :: :: ;: < ',: °> 
AMERICAN C. CO. ItovpT v»o»« 
CENTRAL ( 
LEHIGH p. 
COPLA1 
COPLAV C. CO. 
PENN ALLEN P. C. 
DEXTER P. C. CO. 
PHOENIX C. CO. 
NAZARETH C. CO. 
NORTHAMPTON P. 
MAP OK THE 
LEHIGH DISTRICT, PENNSYLVANIA- NEW JERSEY 
SHOWING DISTRIBUTION OK CEMENT ROCK 
BY EDWIN C. ECKEL ANIJ BAY S. BA6SLEK 
1904 
I '"V j 
Hudson shalt Trenton ] 
'/ Cement rock quarrie 
m/mam/mmf 
n mi. -n. '. <iu u"..:lri- 
K- n N \ ■/_. a »; ii 
1 1 
I! A N 
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