[rickomatic]

Idaho, Montana, Wyoming, Utah. That should be big enough... ;-)

Push the boundaries a little bit west to the Cascade mountain crest in both WA and OR. There are plenty of "wet side" northwesterners ready to move 150 miles to the east already. The Cascade range makes for a better boundary to guard anyway. :)

[Crapgame]

Let’s not forget Nevada...The Sierras make a nice defensible barrier on the West....