Base map originally published in report of the Exploring Expedition to the Rocky Mountains in the year 1842 and to Oregon and North California in the years 1843-44. By Brevet Captain J.C. Fremont, of the Topographical Engineers, under the Orders of Col. J.J. Abert, Chief of the Topographical Bureau. Printed by order of the Senate of the United States. Washington. Gales and Seaton, Printers. 1845 (28th Cong., 2nd Sess., Sen. Ex. Doc. 174, Serial 461)
Shows routes, with annotations, of Jedediah Smith's explorations.
"George Gibbs copied [Jedediah Smith's map] on a Fremont map of 1845 in Oregon, probably sometime in 1851."--from Carl Wheat's "Mapping the Transmississippi West"-- v. 2, p. 127.
Inset: Profile of the route from the north of Kansas to the Pacific by Capt. J.C. Fremont in 1843.
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