Author
Clark, William, 1770-1838
1
Ehrenberg, Ralph E., 1937-
1
Fort Benton River Management Station (Mont.)
1
Geological Survey (U.S.)
1
King, N. 1771-1812,
1
Lewis and Clark Interagency Partnership (U.S.)
1
Lewis and Clark Trail Heritage Foundation
1
Lewis, Meriwether, 1774-1809
1
Library of Congress,
1
McElfresh Map Co
1
McElfresh, Earl B.
1
Muhly, Frank
1
United States. Bureau of Land Management
1
United States. National Park Service
1
Viola, Herman J.,
1