US Pacific Railroad c. 1855 geological survey San Diego Colorado River

U.S.P.R.R. Explorations & Surveys War Department Geological Map of the Country between San Diego and the Colorado River California. by W.P. Blake.

(U.S. Pacific Railroad, Geological Survey, Western US, California, San Diego, Colorado River).

Issued  1855, by U.S. Pacific Railroad Exp. and Surveys. By W.P. Blake.

Mid-19th antique color lithographed map with lithograph color.

Well preserved, sheet uniformly age toned, nice looking example with pleasing age patina.

Sheet Measures c. 8 1/2" H x 11 1/4" W.

Map Area Measures c. 6 1/4" H x 9 1/4" W.

[Q5013].

Marcou, Catalogue of Geological Maps of America, 676.