Topographical map of the road from Missouri to Oregon, commencing at the mouth of the Kansas in the Missouri River and ending at the mouth of the Walla-Wallah in the Columbia

"From the field notes and journal of Capt. J.C. Frémont."
Segments fit together with overlap.
LC Trails, 168
Available also through the Library of Congress web site as a raster image.
Includes meteorological observations.
3 copies, copy 2 missing data from top of map