In the night I wakened to the sound of the ever-rushing river, and saw the forest lighted by moonlight; it made shadows on the trunks of the big trees and lay in patches on the ground. The air was fragrant with the smell of leaves, the freshness of the woods and the subtle perfume of the earth. At daybreak I heard the early chorus of the birds, and went after our horses in the meadow, wading through masses of wild flowers and tall grass growing in bunches. I felt in accord with the world, as though I belonged to the forest. My heart was light; I was as free as the air. When I found Kutenai, my saddle horse, he gave a gentle whinny of recognition and rubbed his soft nose against my hand. He was a good and faithful companion, just the horse for the Indian country. He was young and spirited, yet gentle and friendly; I could trust him, and rode him without saddle or bridle. Before the sun was high, we had our horses packed and were on our way toward the Blackfoot country. Our trail led through a broad valley and along the banks of a swift stream, where the current dashed against moss-covered boulders. The peaks of the Continental Divide sparkled in the sunlight, revealing snowfields and glaciers, which over-hung the mountain sides like ice cataracts. Early in the day the water of the stream was clear, but in the afternoon changed to a milky white, from glaciers melting under a hot sun. I saw a water ouzel dive fearlessly into the foaming rapids and flit about in the spray. The more boisterous the water, the better he seemed to enjoy himself. He sat on a rock in midstream and burst into a cheerful song with delicate trills. Then flew like a flash to his moss-covered nest on a ledge, so close to the rushing water it was continually bathed in spray. We passed through a forest of fir and spruce, the trees tall and straight, and soon had high peaks and massive mountain ranges towering over us. We rode along the base of a great mountain, which rose precipitously several thousand feet. There were lateral valleys with cirques, formed by the erosion of glaciers. Through each of these valleys flowed a stream, which had its source in an overhanging glacier at the head, pine forests sweeping upwards in long and gentle curves. Finally we entered a great basin, a vast amphitheater. In the center was a sparkling blue lake with wooded shores, surmounted by walls of rock several thousand feet in height. The lake was fed by many streams springing from glaciers and snowdrifts; they fell over high cliffs with an incessant roar, which reverberated like thunder from the surrounding walls of rock. We crossed high rock ledges, ravines and gullies, jumped fallen trees, and forced our way through windfalls and thickets of balsam and fir.