Welcome to the Washington State Geologic Information Portal! Through this online service offered by the Washington Division of Geology and Earth Resources, you can access interactive earth science mapping, data, and related information.
More types of geologic information will be added to the information portal in the future, so please visit regularly to see what's new. You may also subscribe to our mailing list to receive announcements of new additions to the portal, as well as notification of our publications releases.
Interactive Maps | Geoscience Data and Collections | Other Earth Science Info Sites
Interactive Maps
Using our interactive maps, you can create, save, and print custom maps, find out more information about map features, and download map data for use in a geographic information system (GIS). Please note that because of the volume of data available through these interactive maps, data loading and identification operations may not be instantaneous; we thank you for your patience.
Washington Interactive Geologic Map [ Launch ] [ Help ]
This application provides access to geologic mapping at several scales, hazards mapping, earth resource information, and base information.
- Geologic mapping at 1:100,000, 1:250:000, and 1:500,000 scales (statewide)
- Landslides at 1:24,000 scale (statewide) NEW
- Liquefaction susceptibility mapping (statewide)
- Seismic site class mapping (statewide)
- Seismic design category mapping (statewide)
- Tsunami inundation zones (Pacific coast)
- Geothermal resource areas
- Several types of base information (such as county boundaries, roads, rivers, township/range, etc.)
- Shaded relief and orthophoto imagery
Earth Resource Permit Locations [ Launch ] [ Help ]
This application provides access to oil and gas exploration drillhole locations, surface mine reclamation permit sites, and base information.
- Oil and gas exploration drillhole locations
- Surface mine reclamation permit locations
- Several types of base information (such as county boundaries, roads, rivers, township/range, etc.)
- Shaded relief and orthophoto imagery
COMING SOON: Index to Geologic Mapping
This application, which is under development, will provide access to a graphical index to geologic and geophysical mapping conducted in Washington. In the meantime, please see our current version of the index to geologic and geophysical mapping (current as of 2003).
Geoscience Data and Collections
Please visit our geoscience data and collections page for information on data (including GIS data) available online, as well as other sources for geoscience data.
Other Earth Science Information Sites
High-quality geoscience mapping and data for Washington is available from other websites outside of DNR:
Interactive Maps
- USGS National Map Viewer - A U.S. Geological Survey site that allows you to interactively view "The National Map" data as a map, customize the view, and print a map
- USGS Earth Explorer - Allows you to search, download, and order U.S. Geological Survey products from many datasets
- Washington State Orthoimage Portal - Allows you to view and download orthoimagery of Washington, prepared from aerial photographs and other data
- Washington Department of Ecology GIS Applications - Access to GIS applications that the Department of Ecology uses in accomplishing its mission of protecting the land, air, and waters of the state. Topics include shoreline aerial photos, regulated facilities, coastal atlas, well log viewer, environmental data, and water quality information
Downloadable Data