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Discover ecoregions

What is an ecoregion?

“Ecoregion” is one of those fancy words that can be very confusing. A widely accepted definition of ecoregion is the one used by the World Wildlife Fund:

An ecological region, or ecoregion, is a large area of land or water that contains a geographically distinct assemblage of natural communities that:

  • share a large majority of their species and ecological dynamics
  • share similar environmental conditions
  • interact ecologically in ways that are critical for their long-term persistence

Put simply, an ecoregion is a large area defined by the range of species or environmental conditions present.

Oregon ecoregions

This ecoregions map source is Oregon Ag In The Classroom.

We have two ecoregions in Clackamas County

Clackamas County contains part of two major ecoregions: the Cascades ecoregion, and the Willamette Valley ecoregion.

For more information

More information is available on these pages:

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