A week was spent on the eastern slope of the mountains, running lines through the Mosca and Cuchara passes. Finally, a camp was made in a forest of balsam-firs, beside a great spring of ice-water, that bubbled from a granite basin at the summit of the Sangre de Cristo, nine thousand feet above sea-level. To Glen and Binney, who had always dwelt in a flat country, and knew nothing of mountains, this was a new and delightful experience. They never tired of gazing off on the superb panorama outspread below them. To the east, the view was so vast and boundless that it seemed as though the distant blue of the horizon must be that of the ocean itself, and that they were spanning half the breadth of a continent in a single sight. At their feet lay the Plains they had just crossed, like a great green map on which dark lines of timber and gleams of light marked the Arkansas and its tributary streams, whose waters would mingle with those of the Mississippi.