This map is an 1866 map of portland's trolley system, all centered around the Willamette River. Map was found in Portland's "Archives and Records M... Lewis & Clark College (Portland, Or.).
This 1910 map shows Portland's quick east-side development and the beginning of south-east suburban sprawl. This map comes from the "Greater Portl... PDXScholar, Carl Abbott.
James D. Proctor and U.S. Environmental Protection Agency. The Toxics Release Inventory (TRI) tracks the management of certain toxic chemicals that may pose a threat to human health and the environment. Cer...
Surveyor General's Office. This map shows the Portland area in 1852 as the "township south of range east of the Willamette Meridian Territory". Created by the Surveyor Genera...
Surveyor General's Office. This map shows the Portland area in 1852 as the "township north of range east of the Willamette Meridian Territory". Created by the Surveyor Genera...
Hanson & Garrow. This is a merged map of the north and south parts of Hanson & Garrow's map of Portland 1912, showing the Columbia River and the development of Port... University of Wisconsin Milwaukie.
Commission of Public Docks. This map shows locations of industrial facilities in 1921 including ports, principal industries, railroad and street car lines, public docks, lumbe...
J.W. Stengele and Jos. Schiffers. This map shows the process of renaming streets, adopted by Portland's City Council in 1892. Georeferenced using WGS 84- Pseudo Mercator. .