Date inferred from note, "Corrections and additions in reference to railroads in California, etc., were made in January, 1862 ..." In lower right margin: Engraved by W.H. Dougal. Includes list of authorities. Relief shown by shading. Shows towns, wagon roads, explorers' routes, railroads, forts, etc., from western California to eastern Nebraska, Colorado, and New Mexico.
1 map ; 70 x 104 cm.
Extent of Digitization
(W 123⁰--W 105⁰/N 43⁰--N 34⁰)., 1500000, a, N0340000, N0430000, W1050000, and W1230000
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Moffat, R.M. Printed maps of Utah to 1900, 60 and Wheat, C.I. Mapping the transmississippi West, 1017