Columbia subject headings:
Black Hills (S.D. and Wyo.)--History--Pictorial works.
Documentary photography.
Frontier and pioneer life--Black Hills (S.D. and Wyo.)--Pictorial works.
Harvard subject headings:
Black Hills (S.D. and Wyo.)--History--Pictorial works.
Frontier and pioneer life--Black Hills (S.D. and Wyo.)--Pictorial works.
Princeton subject headings:
Black Hills (S.D. and Wyo.)--History--Pictorial works.
Frontier and pioneer life--Black Hills (S.D. and Wyo.)--Pictorial works.