"Chart of the Columbia River for 90 Miles from Its Mouth. Drawn from Several Surveys in the Possession of W.A. Slacum U.S.N.", U.S. Government
Subject: Oregon & Washington
Period: 1838 (circa)
Publication: Sen. Doc. 470, 25th Congress, 2nd Session
Color: Black & White
9 x 16.4 inches
22.9 x 41.7 cm
Detailed map of the river from Point Adams/Cape Disappointment east to Ft. Vancouver, showing villages along the way. The map shows the navigability of the river with soundings, sand bars and islands. It was drawn from several surveys in the possession of W. A. Slacum, USN. This is a companion map to Hood's map of the United States Territory of Oregon West of the Rocky Mountains.
References: Claussen & Friis #222.
Issued folding on a bright sheet.