I grew up in NW MT, the Columbian Ground squirrel looks and is nearly the size of tree squirrels. These live at about 2000' elevation and above. Here on the East side of the divide, at least 4 different species exit across the state, with an occasional 5 Striped variety. Prairie poodles are scattered across this area, with colonies of some fun shooting. I try to do more of a 'keep em under control' shooting on some ranches where not many folks are welcome.