About the middle of the afternoon we crossed a low, rocky ridge, above timber line, and saw at our feet a basin or round valley of singular beauty. Its walls were formed by steep mountains. At its upper end lay a small lake, bordered on one side by a meadow of emerald green. The lake's other side marked the edge of the frowning pine forest which filled the rest of the valley, and hung high on the sides of the gorge which formed its outlet. Beyond the lake the ground rose in a pass evidently much frequented by game in bygone days, their trails lying along it in thick zigzags, each gradually fading out after a few hundred yards, and then starting again in a little different place, as game trails so often seem to do. We bent our steps toward these trails, and no sooner had we reached the first than the old hunter bent over it with a sharp exclamation of wonder. There in the dust were the unmistakable hoof-marks of a small band of bison, apparently but a few hours old. They were headed towards the lake. There had been a half a dozen animals in the party; one a big bull, and two calves. We immediately turned and followed the trail. It led down to the little lake, where the beasts had spread and grazed on the tender, green blades, and had drunk their fill. The footprints then came together again, showing where the animals had gathered and walked off in single file to the forest. Evidently they had come to the pool in the early morning, walking over the game pass from some neighboring valley, and after drinking and feeding had moved into the pine forest to find some spot for their noontide rest. It was a very still day, and there were nearly three hours of daylight left. Without a word my silent companion, who had been scanning the whole country with hawk-eyed eagerness, besides scrutinizing the sign on his hands and knees, took the trail, motioning me to follow. In a moment we entered the woods, breathing a sigh of relief as we did so; for while in the meadow we could never tell that the buffalo might not see us, if they happened to be lying in some place with a commanding lookout.