Yeah...Your linky is the map with the boundaries with which I'm familiar.
I already suggested Humboldt County:
Match that against the Cascadia map, and you'll see that I already accept that parts of what are now California would be included in Cascadia.
I trust you've read
Cadillac Desert?
I'm not suggesting any such mechanism of secession. I'm a proponent of nonviolence unless violently provoked. I'm pushing for a constitutional convention. If the last one is any indication, anything can happen. It does, however, suggest the means of disposing of nuclear waste accumulated at locations like Hanford...which stands as another reason to secede.