This, then, was the sheep trail Roy had advised following.

They rode on it for three or four miles, and at length, coming to a gray-green valley, they saw a huge flock of sheep.

Soon the air was full of bleats and baas as well as the odor of sheep, and a low, soft roar of pattering hoofs.

The flock held a compact formation, covering several acres, and grazed along rapidly.

There were three herders on horses and several pack-burros.