"Milk River to the Crossing of the Columbia Rivers",
Subject: Western United States
Period: 1855 (dated)
Publication: Pacific Railroad Surveys
Color: Black & White
61 x 24 inches
154.9 x 61 cm
A large folding map published in 1860 in the reports of the Pacific Railroad Surveys as they surveyed for a northern route (47th and 49th Parallels) on an expedition led by Isaac Stevens, Governor of Washington Territory. Most of map covers Montana, with extraordinary detail and excellent relief, naming rivers, numerous routes with dates, and interesting topographical commentary. Folding as issued. Some light scattered foxing but folds and paper is very sound.