1978 



Limestone in the Coas r Ranges 



45 



1 





Photo 8. Looking northeost ot Pociftc Cement ond 

 Aggregates' Son Vicente Creek deposit, operated 

 until 1970. Ancient crystalline limestone is overlain 

 by Miocene sandstone ond shale (upper bench) . 

 Limestone blasted from quarry benches was 

 moved to glory holes at quarry floor ond trans- 

 ferred underground to o roil system for 3-mile haul 

 to cement plant for further crushing and process- 

 ing. Photo courtesy of Pacific Cement and Aggre- 

 gates Div., Lone Star Cement Corp. 



Photo 9. Pacific Cement and Aggregotes" cement plant west of Sanio Cruz- Limestone and shale from nearby deposits are used to manufocture cement by 

 fhe dry process. Pier (lower right) was used formerly to ship cement by ocean vessel; cement is now hauled by truck. Pftoto courtesy of Pacific Cement and 

 Aggregotes Div., Lone Star Cement Corp. 



