“The western Dahcotah have no fixed habitations. Hunting and fighting, they wander incessantly, through summer and winter. Some are following the herds of buffalo over the wastes of prairie; others are traversing the Black Hills, thronging, on horseback and on foot, through the dark gulfs and sombre gorges, beneath the vast splintering precipices, and emerging at last upon the ‘Parks,’ those beautiful but most perilous hunting-grounds. The buffalo supplies them with almost all the necessities of life; with habitations, food, clothing, and fuel; with strings for their bows, with thread, cordage, and trailropes for their horses, with coverings for their saddles, with vessels to hold water, with boats to cross streams, with glue, and with the means of purchasing all that they desire from the traders. When the buffalo are extinct, they too must dwindle away.” – Francis Parkman, The Oregon Trail