United States Northern Boundary Commission ; Her Majesty's North American Boundary Commission ; [U.S. chief astronomer and surveyor, Capt. W.J. Twining ; British chief astronomer, S. Anderson]
1 map on 24 sheets ; 26 x 1248 cm, sheets 41 x 61 cm + 1 index map sheet
OCLC
ocm28288165
Cartographic Data
Scale approximately 1:126,720. 1 in. = 2 miles
(W 114°20ʹ00ʺ--W 94°40ʹ00ʺ/N 49°26ʹ00ʺ--N 48°50ʹ00ʺ).
Shows the United States and Canadian border from the summit of the Rocky Mountains to the northwest angle of the Lake of the Woods.
Relief shown by hachures and spot heights.
Title from second sheet.
First sheet contains index map at a scale of 1:1,013,760.
Accompanies the U.S. Northern Boundary Commission's "Reports upon the survey of the boundary between the territory of the United States and the possessions of Great Britain" ... (44th Congress, 2d session, 1876-1877. Senate. Ex. doc. 41, Washington D.C., 1878)