>>3474085Northwestern US states (Washington and Oregon, also Idaho and northern California) are part of a bioregion and culture distinct from the rest of the US - parts of British Columbia are often included in it, but I've never heard from a Canadian myself about whether or not they support it.
The largest borders for it I've seen are northern California, Oregon, Washington, Idaho, British Columbia, and Alaska all included.
I don't know if it's popular or well-known in BC, though.