"Along the Gardiner River, inside the northern boundary of the Yellowstone Park, there are always a number of sheep in winter, and they become very tame, having learned by experience that people passing to and fro will not injure them. Men driving up the road from Mammoth Hot Springs to Gardiner, constantly see these sheep, which manifest the utmost indifference to those who are passing them. Sometimes they stand close enough to the road for a driver to reach them with his whip. One winter the surgeon at the post, driving along, came upon a sheep standing in the road, and as it did not move, he had to stop his team for it. He did not dare to drive his horse close up to it. Finally the ram jumped out to one side of the road, and the surgeon drove on. He said he could have touched it with his whip." One winter when Mr. Hofer made an extended snowshoe trip through the Park, he passed very close to sheep. It appeared to him that they fear man less along the wagon roads than when he is out on the benches and in the mountains. They seem to care little for man, but if a mountain lion appears in the neighborhood, the sheep are no longer seen. Just where they go is uncertain, but it is believed that they cross the Yellowstone River by swimming. In winter, and especially late in the winter, sheep frequent southern and southwestern exposures, and spend much of their time there. I have seen places on the St. Marys Lake, in northern Montana, where there were cartloads of droppings, apparently the accumulation of many years, and have seen the same thing in the cliffs along the Yellowstone River. On the rocks here there were many beds among the cliffs and ledges. Often such beds are behind a rock, not a high one, but one that the sheep could look over. In places such as this the animals are very difficult to detect. Although the wild sheep was formerly, to a considerable extent, an inhabitant of the western edge of the prairies of the high dry plains, it is so no longer. The settling of the country has made this impossible, but long before its permanent occupancy the frequent passage through it by hunters had resulted in the destruction of the sheep or had driven it more or less permanently to those heights where, in times of danger, it had always sought refuge.