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Natural Geography of Washington

The distribution patterns of species and ecosystems are the result of natural features of the landscape. Geology, soils, topography, hydrology, and climatic factors combine to create suitable niches for species and ecosystems to occupy. Understanding these natural boundaries is useful as we assess conservation needs and as we plan conservation actions. Two of the most frequently used natural boundary concepts are ecoregions and watersheds. Information on each is presented below.

Naturally Defined Geographies of Washington

  • Ecoregions in Washington

    Using ecoregions as a framework for assessing the distribution and status of species and ecosystems makes biological sense, compared to using politically derived lines like county, state or national boundaries.

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  • Watersheds in Washington

    Watersheds provide a natural framework for land-use planning, including conservation planning.

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Quick Facts

Washington Natural Heritage Program
Department of Natural Resources, P.O. Box 47014
Olympia, WA 98504-7014

Contact Information

Phone: (360) 902-1667
Fax: (360) 902-1789
Email: natural_heritage_program@dnr.wa.gov
Website

History

Founded in: 1977

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