It shut out sight of the surrounding walls and peaks.

Water appeared from under a cliff and, augmented by other springs, became a brook.

Hot, dry, and barren at its beginning, this cleft became cool and shady and luxuriant with grass and flowers and amber moss with silver blossoms.
The rocks had changed color from yellow to deep red.

Four hours of turning and twisting, endlessly down and down, over boulders and banks and every conceivable roughness of earth and rock, finished the pack-mustang; and Slone mercifully left him in a long reach of canyon where grass and water never failed.

In this place Slone halted for the noon hour, letting Nagger have his fill of the rich grazing.