Fertilizer Investigation, Frank K. Cameron, in charge. Mapped by W.C. Crandall, 1912. Office of the secretary -- Report No. 100. Map includes Bathymetry/soundings and spot heights.; 1:100000
Fertilizer Investigation, Frank K. Cameron, in charge. Mapped by W. C. Crandall, 1912. Office of the secretary -- Report No. 100. Map includes Bathymetry/soundings.; 1:100000
Fertilizer Investigation, Frank K. Cameron, in charge. Mapped by W. C. Crandall, 1912. Office of the secretary -- Report No. 100. Map includes Bathymetry/soundings.; 1:100000
Fertilizer Investigation, Frank K. Cameron, in charge. Mapped by W. C. Crandall, 1912. Office of the secretary -- Report No. 100. Map includes Bathymetry/soundings.; 1:100000
Fertilizer Investigation, Frank K. Cameron, in charge. Mapped by W. C. Crandall, 1912. Office of the secretary -- Report No. 100. Map includes Bathymetry/soundings.; 1:100000
Relief shown by hachures. Includes area map, inset maps of Portland and Mount Hood Loop Drive, and text on verso. "Railways systems of State have been added to this map by the Portland Chamber of Commerce."