Geology map app adds more of what’s under your feet

The composition of the Miocene-era rock under Spokane's Riverfront Park is one of the detailed reports you can get with a mouse click thanks to new updates to the Washington Geologic Information Portal. Photo/DNR
The composition of the Miocene-era rock under Spokane’s Riverfront Park is one of the detailed reports you can get with a mouse click thanks to new updates to the Washington Geologic Information Portal. Photo/DNR

Sure, the skating rink, garbage-eating goat and big red wagon are obvious attractions. But what’s under Spokane’s Riverfront Park?

Thanks to the Washington State Department of Natural Resources Division of Geology and Earth Sciences, you can take an online look at the Miocene lava deposits under Charles I. D. Looff’s 105-year-old carousel in the park.

The Washington Geologic Information Portal now contains thousands of new reports that can be easily viewed on an interactive map. What’s in the ground and what’s under it can all be viewed in greater detail than ever before.

Data from published literature have been compiled over the past several years to provide the public an easy way to learn about the geology around them.

New additions include:

  • Geologic mapping at 1:24,000 scale
  • Compiled reports on the chemical composition of rocks
  • Over 5,000 radiometric age estimates of rocks and deposits
  • Location, water chemistry, temperature, and imagery of thermal and mineral springs
  • Improved and expanded subsurface database with the locations, lithologic information, and reports for thousands of geotechnical boreholes
  • Revised and expanded geothermal information including resource potential and favorability, geothermal well data, and locations of open- and closed-loop geothermal systems.

For more information about the Geologic Information Portal, go to: http://www.dnr.wa.gov/Publications/ger_fs2_portal.pdf

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