"Milk R. to the Crossing of the Columbia R.", U.S. War Dept.
Subject: Northwestern United States
Period: 1853-5 (dated)
Publication: Pacific Railroad Surveys
Color: Black & White
60.5 x 23.2 inches
153.7 x 58.9 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. Very good condition with only one minor separation at a fold intersection.