These alpine pastures are the home of many mountain sheep. Between Long's Peak and Mt. Meeker there is a shattered shoulder of granite that is fourteen thousand feet above sea-level and at all times partly covered with an ancient snow-field, the remains of a former glacier. During earlier years I occasionally used the sky-line by this snow-field for a view-point and a lingering-place. One day after a long outlook, I emerged from between two blocks of granite and surprised a flock of mountain sheep near by. A majority of them were lying comfortably among the stones. One was nosing about, another was scratching his side with his hind hoof, while the patriarchal ram was poised on a huge block of granite. He, too, was looking down upon the world, but he was also scouting for enemies. Upon my appearance, the flock broke away at good speed but in excellent order, the old ram leading the way. In scrambling up for a farewell view, I disturbed a mountain lion. He bounded among the scattered wreckage of granite and vanished. Here was big game and its well-fed pursuer, in the mountain heights, above the limits of tree growth and almost three miles above the surface of the sea. Many flocks live at an altitude of twelve thousand feet. Here the lambs are born, and from this place they all make spring foraging excursions far down the slopes into a warmer zone for green stuffs not yet in season on the heights. Their warm covering of soft hair protects them from the coldest blasts. Winter quarters appear to be chosen in localities from which winds regularly sweep the snow. This sweeping prevents the snow from burying food beyond reach, and lessens the danger of these short-legged mountaineers becoming snowbound. They commonly endure wind-storms by crowding closely against the lee side of a ledge. Now and then they are so deeply drifted over with snow that many of the weaker ones perish, unable to wallow out. The snow-slide, the white terror of the heights, occasionally carries off an entire flock of these bold, vigilant sheep. The mountain lion is a prowler, a cowardly, rapacious slaughterer, and may visit the heights at any time. Though apparently irregular in his visits, he seems to keep track of the seasons and to know the date for spring lamb, and he is likely to appear while the sheep are weak or snowbound. He is a wanton killer and is ever vigilant to slay. He lurks and lies in wait and preys upon all the birds and beasts except the bear.