Filters: partyWithName: USGS Forest and Rangeland Ecosystem Science Center (X) > partyWithName: David P Hockman-Wert (X) > partyWithName: FRESC Science Data Coordinator (X)
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This table is a crosswalk or lookup table that classifies rock type (surface geology) by its permeability, or the ability to pass substances, such as liquids or gases. The rock types that are classified are located in the Northwest U.S. -- Oregon, Washington, Idaho, Utah, Nevada, Wyoming, and Montana.
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