It has been well said that "history is geography set in motion." And "Geography," says Kant, "lies at the basis of history." The peculiar geographic environment of the Yellowstone tract had a definite and striking influence on the early history of the region. It attracted few visitors and no settlers. To the pioneer and the Indian it offered few necessities, and these were almost inaccessible owing to climatic discomforts and difficulties of communication. Even to-day, for commercial use, the Yellowstone country would support only a sparse population. But what formerly repelled now attracts. Time has brought changes. Congested population, the necessity for outdoor life, the destruction of most of the wild outing-places--these conditions have given to this and to other scenic mountain places a high economic value; likewise what may be called a nobler or higher value. Reserved and used as a recreation park by the public, it has become an economic asset of enormous importance. And through park use it conveys benefits to thousands. Yesterday the Yellowstone environing factor arrested, deflected, and retarded the movement and the development of society. To-day it attracts, arouses, energizes, and ennobles a multitude. 2. THE DISCOVERY OF THE YELLOWSTONE In the Yellowstone National Park--the first national park in the world--are so many natural wonders, of such unusual character, that not until the tract was discovered the sixth time were the American people convinced of its existence. Sixty-three years elapsed from the time of its first discovery to that of its recognition as an actuality. The first two discoveries--they were made by trappers a generation apart--were laughed at and soon forgotten. The third, by prospectors, led to a successful private exploring expedition from Montana. This was followed by a larger and semi-official expedition, which also achieved its object. The sixth and last was an official discovery by the United States Government. The Indians of the Yellowstone region knew of the present Park tract. They had a north-and-south trail across it, also one from east to west. To them it was the "Top of the World," the "Land of Burning Mountains," and the "Yellow Rock." But its wonders appear to have produced little or no impression on the Indians; there is an absolute dearth of myths, legends, and even of superstitions concerning it. To me this is remarkable. From every point of view the natives regarded the Yellowstone with indifference. Lewis and Clark daily questioned Indians concerning the character of the country, but the explorers heard nothing of the Yellowstone wonderland, although they passed and repassed within a few miles of it.