Author
Caroline F. Schimmel Collection of Women in the American Wilderness (University of Pennsylvania)
192
Geological Survey (U.S.)
161
Gotham Book Mart Collection (University of Pennsylvania)
152
Newberry Library
144
Adam Matthew Digital (Firm)
142
Rand McNally and Company
136
Remington, Frederic, 1861-1909
113
Warner Home Video (Firm)
112
ebrary, Inc
110
Lewis, Meriwether, 1774-1809
106
Clark, William, 1770-1838
105
Jackson, William Henry, 1843-1942
86
Wayne, John, 1907-1979
85
Anne S.K. Brown Military Collection
84
Union Pacific Railroad Company
83
Russell, Charles M (Charles Marion), 1864-1926
82
United States Bureau of Reclamation. Oral History Program
79
Amon Carter Museum of Western Art
76
St. Martin's Press/Tor Archive (Brown University)
75
Catlin, George, 1796-1872
70
Storey, Brit Allan
69
De Gruyter
67
Wheeler, George M (George Montague), 1842-1905
67
Decalves, Alonso
66
Geographical Surveys West of the 100th Meridian (U.S.)
65
Films for the Humanities & Sciences (Firm)
63
United States Bureau of Reclamation
63
Grey, Zane, 1872-1939
61
United States Army. Corps of Engineers
61
Films Media Group
60
Robert Dechert Collection (University of Pennsylvania)
60
United Artists Corporation
58
United States War Department
56
United States National Park Service
55
Culture Class Collection (University of Pennsylvania)
54
Harris Collection of American Poetry and Plays (Brown University) Collections and Anthologies
53
Eberstadt Collection (Brown University)
51
American Culture Class Collection (University of Pennsylvania)
50
Hafen, LeRoy R (LeRoy Reuben), 1893-1985
49
Etulain, Richard W
48
Frémont, John Charles, 1813-1890
48
Harris Collection of American Poetry and Plays (Brown University) Poetry, 1901-1925
47
American Automobile Association
46
Paramount Pictures Corporation
46
United States Bureau of Land Management
46
Harte, Bret, 1836-1902
45
Project Muse
45
Harris Collection of American Poetry and Plays (Brown University) Poetry, 1926-1950
43
Kennedy, Thomas William, 1837-1923
43
United States Forest Service
43
more ...