The original range of the American Buffalo extended from but little west of the Atlantic coast westward to the Rocky Mountains and from Mexico on the south northward to about the sixty-fifth degree of north latitude. By the trappers the Buffaloes were placed in two classes. Those that frequented the mountain ranges were called Bison. They were seldom seen on the plains, the home of the other class. Their limbs were shorter and stouter and better fitted for a rough country. There existed in former ages two other species entirely distinct from the animal with which we are familiar. They were much larger, possibly as large as an elephant, and were probably associates of the mastodon and the mammoth.

A fully adult male Buffalo will measure about nine or ten feet in length from the muzzle to the tail. Its height at the fore quarters is from five to six and one-half feet. The female is much smaller and weighs from seven to eight hundred pounds less than the male, the weight of which averages eighteen hundred pounds.

The Buffalo's massive head, with its short, curved horns which are set far apart on the broad forehead, is connected with the body by a short deep and narrow neck. From the neck the body rises, forming a large hump on the back over the forelegs, which gives the animal an odd and unwieldy appearance. This hump consists of fat and strong muscles which control the movements of the massive head. From the hump the body tapers downward so that the hind quarters are low and narrow. The anterior portion of the body, the forelegs and the head are covered with long hair. On the forehead and back the hair is curly and matted. In the early spring most of the long hair is shed, resulting in a modification of the color of the Buffalo. The new coat is a uniform grayish brown, deepening into black-brown in the mane, which covers the top part of the head, forehead, neck and under surface of the throat.

Captain Doyle in an article published in the American Naturalist says, "White Buffaloes have frequently been seen and killed. All the Indian tribes regard them as 'big medicine,' but they have different superstitions regarding them. For instance Catlin, the painter, while among the Mandans in 1832, saw a white buffalo robe erected on a pole in their village as a sacrifice to the Great Spirit. It had been purchased from the Blackfeet, who killed the Buffalo, for eight horses and a quantity of goods. On the other hand, the Comanches believe it very dangerous to see a white Buffalo. In 1869 1 saw a young Comanche, who had seen a white Buffalo, return to his camp almost dead with fear. He was taken into his tent, the medicine man was sent for and they smoked him and kept up incantations over him day and night for a week. When he came out he believed that he had had a very narrow escape from death. In 1859 a white Buffalo was killed by a white man on the north fork of the Red river. He desired to have it dressed to preserve it, but failed to get any Indian to undertake the task for a long time. At last he prevailed on a Comanche chief, named 'Horseback' to have the operation performed. 'Horseback' selected one of his squaws, had the medicine man of his band go through various ceremonies over her to preserve her life and then placed her in a tepee some distance from his camp, where the hide was taken to her by a soldier and brought away by him when dressed. No other Indian would look at the hide, much less touch it. Her food was left for her at some distance from the tepee and when the robe was dressed, medicine ceremonies wore held over her before she was allowed to join the camp."

These gregarious animals, during the period of their supremacy, rarely remained for any great length of time in any given locality. Frequently, as if moved by a sudden and general impulse, the whole herd, made up of many smaller companies, each with its leader, would start, all the individuals moving in the same direction. No barriers seemed too great to overcome. Moving in a straight line they would swim or ford rivers, find some means of crossing chasms, but still move on as if led by some irresistible impulse.