No squirrels in Utah? Maybe not any of the species that most folks normally consider the eattin' kind, but there is tons of squirrel hunting in Utah, both of the tree and digger varieties, and some of them are fine eatting.
Takes more of them to make a meal than their eastern relatives maybe, and for sure than the western Grays, but the Red squirrels (also called Pine or wrongly Douglas squirrels) are abundant in the right habitats in Utah. They can be hunted year round with no bag or possession limits and are quite tasty. Way, way back when I ran deep snow winter trap lines along the North Fork/Upper Provo and Hayden Fork I commonly walked up lots of Reds scolding me from their tree perches that were dispatched with either a rimfire pistol or rifle for the cook pot.