Water availability map ...

1970

Geological Survey (U.S.)

1:3m

Nebraska.

1948

Rand McNalley & Company

1:1m

South Dakota.

1927

Rand McNally and Company

1:2m

Map of a reconnaissance of the Black Hills of Dakota, July and August 1874

1874

United States. Army. Corps of Engineer

1:760k

Bird's eye view of the Black Hills to illustrate the geological structure.

1879

Newton, Henry, 1845-1877

Rand McNally Road map: Nebraska

1939

Rand McNally and Company

1:1m

Map showing the positions of the Bad Lands or Mauvaises Terres of Nebraska

1852

Owen, David Dale

Map of Nebraska. 82

1891

Appleton, D. & Co.

1:2m

South Dakota

1906

Peterson, E. Frank

1:1m

South Dakota

1906

Rand McNally and Company

1:1m