The year 1926 was marked by the first of a series of important archeological finds in New Mexico that were eventually to demonstrate that man had occupied this area as much as 11,000 to 12,000 years ago. During this period, Late Pleistocene ice sheets of continental glaciers still blanketed parts of the northern tier of states in the vicinity of the Great Lakes, and elephants (both mammoths and mastodons), horses, camels, giant bison, tapirs, and ground sloths roamed the Southwest. Excavations begun in 1926 near the small town of Folsom, in northeastern New Mexico (fig. 1), disclosed a number of fossil skeletons of a large form of extinct bison, forerunners of the modern bison or buffalo. Among these bones were dart or spear points of distinctive form and workmanship, characterized by broad, shallow flutes or channels on each face (fig. 2). These artifacts, now known as Folsom points, have since been recovered from a number of sites in New Mexico and elsewhere in North America, commonly in association with the remains of extinct bison. Evidently Folsom “Man” (whose skeletal remains have not been discovered) was a nomadic hunter particularly dependent upon the bison for his food supply, much as were the later Plains Indians of historic time. Ages of from 10,000 to 11,000 years have been obtained from charcoal and other organic remains at Folsom camp sites by the radiocarbon method. Succeeding years have seen an increasing number of valuable archeological discoveries at camp and game-kill sites of Folsom Man and other Early Hunters. Unquestionably, the most important of these sites is the Blackwater Draw locality between Clovis and Portales in extreme eastern New Mexico, where excavations for gravel disclosed a stratified sequence of sediments that were deposited in an ancient pond and spring. Here, too, were the characteristic Folsom points in association with the bones of fossil bison. Below the Folsom layer, still older deposits contained the fossil bones of mammoth, horse, camel, and bison associated with fluted spear points that resembled those from Folsom but were generally larger and less skillfully chipped and fluted. These points, now known as Clovis points, are so commonly found beside the remains of mammoths in a number of sites in the High Plains and the Southwest that their makers are believed to have been adept at hunting these extinct elephants. Radiocarbon dates place Clovis points in a time range of from 11,000 to 12,000 years ago.