All the Pretty Horses by Cormac McCarthy (The Border Trilogy #1)

Teenager John Grady Cole, the last of a long line of Texas ranchers, has nothing left to stay for. Across the border Mexico beckons—beautiful and desolate, rugged and cruelly civilized. With neighbor Rawlins, and scruffy boy, he rides toward an idyllic, sometimes comic adventure, to a place where dreams are paid for in blood.

Paperback, 1993

Goodreads: 4.04