1998. Metro Data Resource Center. This polygon data layer represents slopes greater than 25% for Portland Metro, Oregon in 1998. The dataset was originally published by the Metro Da...
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1991. Metro Data Resource Center. This polygon data layer represents soils for Portland Metro, Oregon in 1991. The dataset was originally published by the Metro Data Resource Center...
1926. Oregon State Highway Commission. Relief shown by hachures and spot heights.; On verso: Text, mileage tables and 2 ancillary maps.; In lower right corner: "E.A. Skelley." 44 x 58 ce... Oregon State Highway Commission (Salem, Or).
1925. Oregon State Highway Commission. Relief shown by hachures and spot heights.; In lower right: "E. A. Skelley."; Includes text, mileage tables and ancillary map on verso. 39 x 52 cen... Oregon State Highway Commission (Salem, Or).
85. State of Oregon
1910. United States. General Land Office. Relief shown by shading and spot heights.; Public land grid.; Longitude west of Greenwich noted across upper margin; longitude west of Washington, ... Dept. of the Interior, General Land Office (Washington, D.C).
86. State of Oregon
1906. United States. General Land Office. Shows county boundaries, military and Indian reservations, forest reserves, national parks, military roads, and lighthouses. Relief shown by shadin... Andrew B. Graham Co (Washington, D.C).
1876. United States. General Land Office. Relief shown by hachures.; "S.S. Burdett, Commissioner."; Gives longitude west from Washington and Greenwich. 60 x 79 centimeters Scale 1:950,400; ... The Office (Washington, D.C).
1889. Dinsmore, A. F. and United States. General Land Office. Relief shown by hachures. Prime meridians: Greenwich and Washington, D.C. 1 map: col.; 70 x 89 cm.
1897. King, Harry, (Harold G. R.),Hendges, M. and United States. General Land Office. Shows rail roads completed, rail roads proposed, life saving stations, county seats, light houses, military roads and trails and roads. Relief show...
2001. Metro Data Resource Center. This line data layer represents streams for Portland Metro, Oregon in 2001. The dataset was originally published by the Metro Data Resource Center ...