The Posse from Poison Creek — Lewis B. Patten

The minute Sheriff Webb Dolan led the posse out of town he knew he was in serious trouble. The three murdering outlaws were already hours into the deadly Ute Indian country... and some of Dolan's recruits were unfit to go after them. Worse yet, Dolan realized, his fellow lawman Floyd Aragon had no intention of actually capturing the badmen. He might cut them all down like dogs and grab the stolen money for himself. And what would he do to the beautiful woman who had joined their band? In the middle of the sun-baked desert there was bound to be a blood-drenched showdown!