Use Metro's free online mapping service to view and share maps and data or to query parcel and tax assessment information, zoning, political boundaries, planning information, flood plain and special districts.
Pre-made maps showing things like percentage of immigrants in a neighborhood, income levels, health care, and transit access. It also allows the creation of specially created maps combining different sorts of data. Requires a download of Microsoft Silverlight.
Oregon Explorer provides a web-based natural resources digital library by integrating data from state and federal agencies, local governments, university scientists, and citizens. A collaboration between Oregon State University Libraries and the Institute for Natural Resources.
The online atlas highlights lake and reservoir water data stored within the Pacific Northwest Water Quality Data Exchange (PNWWQX). The PNWWQX collaborates between a variety of information management projects to facilitate the aggregation of and access to a comprehensive source of data related to water quality in the Pacific Northwest.
US Topo topographic maps are produced by the National Geospatial Program of the U.S. Geological Survey (USGS). The project was launched in late 2009, and the term “US Topo” refers specifically to quadrangle topographic maps published in 2009 and later.
Digitized historic maps at the Library of Congress. Includes cities & towns, conservation & environment, discovery & exploration, communication & transportation, military battles, and cultural landscapes.
Zoom into specific addresses or locations via Google Earth. International coverage. Possible to create geographic datasets. Order satellite images, aerial photographs, and other cartographic materials from the U.S.G.S. (U.S. Geological Survey).