Out here in the Channeled Scablands of Eastern Washington they are Rockchucks and much smaller than your Eastern variety. They den in cracks in the rock and they need to be small so they can get through a crack in the rock that a Badger can't.
I was introduced to Rockchuck hunting early --
Rockchucks 1949.jpg
Dad's rifle is a Winchester Model 54 .22 Hornet dressed up by Seattle gunsmith Bill English with his English End-lock scope mount and a Weaver 330. A couple of years later he added a Litschert Spot Shot adapter to the Weaver 330 to up it to 6x.