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Institution
Collection
Subject
24
Grand Canyon National Park (Ariz.)
11
Sedimentation and deposition
10
Geology
6
Hiking
6
Outdoor recreation
6
Public lands Recreational use
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5
Alluvium
5
Floods
5
Sand
4
Trails
3
Architecture
3
Debris avalanches
3
Geomorphology
3
Plants
2
Aeronautics, Commercial Safety regulations
2
Airplanes Noise
2
Airplanes Noise Government policy
2
American bison Control Law and legislation
2
Animals
2
Archaeology Antiquities
2
Day hiking
2
Environmental law
2
Environmental protection
2
Erosion
2
Geology, Stratigraphic
2
Grand Canyon National Park (Ariz.) Environmental conditions
2
Groundwater
2
Historic buildings
2
Landslides
2
National parks and reserves Public use
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Author
15
United States. Bureau of Reclamation
14
Geological Survey (U.S.)
8
Geological Survey (U.S.),
8
United States. National Park Service
8
United States. National Park Service,
5
United States. National Park Service. Denver Service Center
more ...
4
Architectural Resources Group
4
Graf, Julia B.
4
Schmidt, John C., 1950-
4
Webb, Robert H.
3
United States. National Park Service. Natural Resource Stewardship and Science,
2
Collins, Brian Daniel,
2
Grand Canyon Monitoring and Research Center
2
Grand Canyon National Park (Agency : U.S.)
2
Grand Canyon Natural History Association
2
United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Aviation
2
United States. Congress. Senate. Committee on Energy and Natural Resources,
2
United States. Department of the Interior. Office of Inspector General,
2
Webb, Robert H.,
2
Wiele, Stephen Mark
1
American Institute of Useful Arts & Sciences
1
Andrews, Caitlin,
1
Beisner, Kimberly R.,
1
Billingsley, George H.
1
Brown, Kristin M.,
1
Burke, Kelly J., 1960-
1
Carpenter, Michael C.
1
Collins, Brian
1
Collins, Brian D.
1
Draut, Amy E.
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Language
Genre
Literary Form
Region
Arizona
Grand Canyon National Park
29
Grand Canyon National Park (Ariz.)
10
Colorado River (Colo.-Mexico)
4
United States
2
Coconino County
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2
Colorado Plateau
2
Colorado River Valley (Colo.-Mexico)
2
New Mexico
1
Canyon de Chelly National Monument
1
Canyon de Chelly National Monument (Ariz.)
1
Chaco Canyon
1
Chaco Culture National Historical Park
1
Chaco Culture National Historical Park (N.M.)
1
El Malpais National Monument
1
El Malpais National Monument (N.M.)
1
Glen Canyon Dam (Ariz.)
1
Glen Canyon National Recreation Area (Utah and Ariz.)
1
Grand Canyon
1
Grand Canyon (Ariz.)
1
Grand Canyon Region (Ariz.)
1
Lava Falls Rapids
1
Lava Falls Rapids (Ariz.)
1
Mohave County
1
Petrified Forest National Park
1
Petrified Forest National Park (Ariz.)
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Call Number
Year of Publication