Charles Preuss; John Charles Frémont; United States. Congress. Senate.
|注意：||"In VII sections."
Relief shown by hachures.
Numbering of sections 3 and 6 is reversed. Correct east to west sequence using printed section numbers is 1,2,6,4,5,3,7.
Misnumbered set appears in H. Rept. 145, 30th Congress, 2nd session, 1849: Canal or railroad between the Atlantic and Pacific Oceans.
Includes meteorological observations, remarks, and excerpts from Fremont's reports.
|描述：||1 map on 7 sheets ; sheets 41 x 68 cm|
|製圖數學資料：||Scale [1:633,600]. 10 miles to the in.; (W 118Â°--W 95Â°/N 46Â°--N 39Â°).|
|責任：||from the field notes and journal of Capt. J.C. Frémont, and from sketches and notes made on the ground by his assistant Charles Preuss ; compiled by Charles Preuss, 1846 by order of the Senate of the United States.|