The Cascadia Bioregion: Organizations and Resources in the Pacific Northwest
The Pacific Northwest (PNW) region is typically defined to include Oregon and Washington, and British Columbia (Canada) and the northernmost section of California are often included, as well. The Pacific Northwest “bioregion”—an area defined by shared natural characteristics, such as watersheds, topography, geography, climate, or ecosystems, rather than by arbitrary human borders—also can be interpreted in different ways.


















