The Man from the Bitter Roots w/ Direct link technology(A Western Classic)

The little white "digger," galloping with the stiff, short-legged jumps of the broken-down cow pony, stopped short as the boy riding him pulled sharply on the reins, and after looking hard at something which lay in a bare spot in the grass, slid from its fat back.
He picked up the rock which had attracted his eye, and turned it over and over in his hand. His pockets bulged with colored pebbles and odd-looking stones he had found in washouts and ravines.