This manuscript is entitled "A Report to the Hon. Isaac I. Stevens, Governor of Washington Territory, on the Indian Tribes of the Upper Missouri, by Edwin Thompson Denig." It has been edited and arranged with an introduction, notes, a biographical sketch of the author, and a brief bibliography of the tribes mentioned in the report.

The report consists of 451 pages of foolscap size; closely written in a clear and fine script with 15 pages of excellent pen sketches and one small drawing, to which illustrations the editor has added two photographs of Edwin Thompson Denig and his Assiniboin wife, Hai-kees-kak-wee-lãh, Deer Little Woman, and a view of Old Fort Union taken from "The Manoe-Denigs," a family chronicle, New York, 1924.

The manuscript is undated, but from internal evidence it seems safe to assign it to about the year 1854...