Cartography of California. 215 



1896. Calaveras County official map. Compiled from U. S. 

 official surveys, mines and mining claims, reservoirs and 

 water ditches, wagon roads and trails, mother lode. 

 1896. Scale, 1 m. to 1 in. 



1899. Map of Calaveras County. Compiled by H. W. Pen- 

 niman. Published in California Mines and Minerals, by 

 California Miners' Association. 1899. Scale, 3 m. to 

 1 in. 



1899. Map of Calaveras County. Scale, 2 m. to 1 in. State 

 Mining Bureau, Register of Mines and Minerals, Cal- 

 averas County. 



COLUSA. 



1874. Official map, compiled and drawn from official surveys 

 by J. B. De Jarnatt. Approved February session, 

 1874. Scale, 100 chains to 1 in. 



1885. Official map of Colusa County, California. Compiled 

 and drawn from official surveys and records by De Jar- 

 natt & Crane, searchers of records, Colusa, Cal. Ap- 

 proved December, 1885. Scale, 100 chains to 1 in. 

 [Britton & Rey, lith.] 



1903. ^lap of Sulphur Creek district. Accompanying Bulle- 

 tin No. 27, State Mining Bureau, 1903. No scale. 



CONTRA COSTA. 



1871. Topographical map of Contra Costa County. Com- 

 piled for the Board of Supervisors from the State Geo- 

 logical and U. S. surveys. 1871. Scale, 1 m. to 1 in. 

 [Britton & Rey, lith.] 



1885. Official map of Contra Costa County, California. By 

 T. A. McMahon, county surveyor, and Wm. Minto, civil 

 engineer, in accordance with an order of the honorable 

 Board of Supervisors, dated February 4, 1885. Lith., 

 Britton & Rey. Published by T. J. Leary, San Francisco. 

 Scale, 40 chains to 1 in. 



1894. See Alameda. 



