Guns Blaze At Sundown

From back of book: Bushwhacked! Tom Shannon is gunned down as an impostor rides to take over his ranch. For three weeks he hovered between life and death, surviving only because of a mysterious stranger who found him lying, blood-soaked, on the trail. Cared for and recovered, Shannon sets out to find some answers -- and finds he bucking the deadliest killers in the West. Now a "dead man" fights to regain his land, and a six-gun showdown in the frozen hills of Montana determines who will ride herd on a fortune in cattle and gold.