Ovando

1902

1:125k

Drummond

1919

1:125k

Helena

1899

1:250k

Plate XXVII. Lewis and Clark Forest Reserve, Montana, Showing distribution of forest trees.

1900

Ayers, H.B.

1:911k

Plate III. Lewis and Clark Forest Reserve, Montana, Showing Classification of Lands, 1899.

1899

Ayers, H.B.

1:508k

Great Falls Air Force Base : Great Falls Montana : Vicinity map

1951

United States. Air Force

1:500k

Plate VIII. Lewis and Clark Forest Reserve, Montana, by H.B. Ayers, 1899.

1899

Ayers, H.B.

1:911k

Plate XIV. Lewis and Clark Forest Reserve, Montana, Showing Distribution of Forest Trees.

1900

Ayers, H.B.

1:911k

Aerial Map of Glacier National Park and the Flathead Valley

1954

Simpson, Lucille

Map illustrating the route of General W. T. Sherman from Helena, Montana, to Spokane Falls, Washington Territory, between August 29th and September 18th 1877.

1877

Sherman, William T. (William Tecumseh), 1820-1891

1:575k