A map based off 1858 military surveys showing the approximate locations for military roads constructed between 1859 to 1862. Also shown on the map are locations for farms, camps, trails, bridges, vegetations types, rapids, rock outcrops, landings, and locations of battles. Relief shown by form lines. This map is part of series: Senate executive document (United States. Congress. Senate) ; 47th Congress, 3rd session, no. 43.

A map of the western United States including parts of Oregon, Utah, and Idaho. A reconnaissance for a military road from the Dalles of the Columbia River to the Great Salt Lake is depicted by a dashed line labeled "Proposed Route." A note at the top says "Senate Ex. Doc. No. 34 - 36th Cong. 1st Sess." Relief is shown by hachures.

A map depicting a part of the Territory of Washington. The map shows surveys under contract, surveys executed, surveys proposed for 1860-61, Native American reservations, prairies, and trails. Relief is shown by hachures.

A map of the Oregon, Washington, and Idaho Territories that depicts the military road from Fort Walla Walla to Fort Benton. The map also shows locations of Native American tribal groups. Relief is shown by hachures.