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Cascadia is the region centered around the Cascade mountain range, which stretches through Oregon, Washington and British Columbia. The broadest definition includes the watersheds of the Pacific Northwest, including Washington, Oregon and B.C., as well as parts of Idaho, Montana, Alaska and California.

The 15 million residents of Cascadia -- mostly in the Vancouver-Seattle-Portland corridor -- are bound by growing economic ties and shared history and culture. Political boundaries don't necessarily apply.

Cascadia Report was created by Brad Meacham, a Seattle-based strategic communications professional. For more, see

Cascadia Report highlights business and politics from a regional perspective and isn't affiliated with any regional or ideological groups. To contribute, email meacham(at)

Sightline Institute; used by permission