Trail hand a western story
(Large type book)

Owen Burke just wanted a little extra money. He had no idea he'd also be getting a heap of trouble when he signed on to guide a horse drive from Mexico to California. First he was bushwhacked by a bunch of banditos who stole his mount. Worse, they then drove off the rest of the herd, and because they had Owen's horse, the ramrod thinks Owen purposely led his group into a trap. Alone and on foot, he has no choice but to go after the thieves and prove his innocence--if the ramrod and his gang don't kill him first.