BLACKFOOT INDIAN RELIGIOUS CEREMONY IN GLACIER NATIONAL PARK The Indians, dressed in native costume, are offering prayer to the God of the Underwater on the shore of Two Medicine Lake the Algonkin Arapaho, were closely associated with them. Al though situated near the north-western limit of the abundant range of the bison, the Blackfoot shared the culture of the Plains tribe in pure form. Their separation both from the central-eastern Algonkin and the Arapaho must be ancient, as shown by the specialization of their language. They originally numbered perhaps 3,000 per tribe, of whom 4,635 remained in 1909-2,440 on three reservations in Alberta, 2,195 on American soil.
See G. B. Grinnell, Blackfoot Lodge Tales (1892) ; J. W. Schultz, My Life as an Indian (19°7); C. Wissler, Am. Mus. Nat. Hi.ct. Anthr. Pap., vols. v., vii. (Iwo-12).