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Institution
Collection
Format
Subject
134
Geology
66
Mines and mineral resources
61
Geology, Stratigraphic
51
Groundwater
47
Water quality
34
Wildlife conservation
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31
Aquifers
31
Paleontology
21
Geochemistry
18
Environmental impact analysis
18
Paleobotany
18
Wetland conservation
17
Streamflow
16
Stream measurements
16
Water-supply
15
Endangered species
15
Ore deposits
14
Water Pollution
13
Groundwater Quality
12
Climatic changes
12
Ecosystem management
12
Hydrogeology
12
Water levels
11
Floods
11
Geology, Structural
11
Groundwater flow
11
History
10
Coral reef ecology
10
Wildlife refuges
9
Crustacea
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Author
446
Geological Survey (U.S.),
165
Geological Survey (U.S.)
32
U.S. Fish and Wildlife Service
20
Great Lakes Environmental Research Laboratory
20
Kornicker, Louis S., 1919-2018
20
Smithsonian Institution. Press
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15
National Institute of Standards and Technology (U.S.)
13
Smithsonian Institution. Press,
13
United States. National Park Service
12
Smithsonian Institution Scholarly Press,
12
United States. Bureau of Reclamation
11
National Science Foundation (U.S.)
10
Mathis, Wayne N.
10
United States. Bureau of Land Management
10
Vari, Richard P.
9
Berry, Edward Wilber, 1875-1945,
9
Elliott, G. S.,
9
Hessin, Thomas D., 1919-
9
Iliffe, Thomas M.
9
Johnson, Bruce R.,
9
National Museum of Natural History (U.S.)
9
U.S. Fish and Wildlife Service,
9
United States. National Bureau of Standards
7
Wood, Tamara M.,
6
Clarke, Frank Wigglesworth, 1847-1931,
6
Great Lakes Environmental Research Laboratory,
6
Hershler, Robert
6
Lindgren, Waldemar, 1860-1939,
6
National Water-Quality Assessment Program (U.S.)
6
Ransome, F. L. 1868-1935,
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Language
Genre
122
Electronic government information
74
Classification
61
Maps
36
Periodicals
29
Conference papers and proceedings
19
Statistics
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16
Technical reports
15
Handbooks and manuals
14
Catalogs
13
Bibliographies
9
Catalogs and collections
9
Congresses
8
Databases
6
Dictionaries
4
Academic theses
4
Bathymetric maps
4
Case studies
3
Directories
3
Identification
3
Photographs
3
Remote-sensing maps
2
Atlases
2
Illustrated works
2
Topographic maps
1
Annual reports
1
Biographies
1
Classifications
1
Comparative studies
1
Festschriften
1
Fiction
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Literary Form
Era
19
Cretaceous
12
Quaternary
10
Tertiary
9
Eocene
8
Pennsylvanian
5
Permian
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5
Proterozoic
5
Triassic
4
Holocene
4
Mesozoic
4
Miocene
4
Pleistocene
3
Paleozoic
2
Cenozoic
2
Oligocene
2
Paleocene
2
Precambrian
1
1809-1865
1
1860-1931
1
1906-2004
1
1962-
1
20th century
1
Cambrian
1
Carboniferous
1
Mississippian
1
Ordovician
1
Pre-Quaternary
1
Silurian
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Region
179
United States
68
Alaska
57
California
42
Oregon
29
New Mexico
28
Colorado
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25
Arizona
25
Florida
24
Nevada
23
Utah
20
Washington (State)
20
Wyoming
19
Montana
19
North America
19
Texas
18
West Chichagof-Yakobi Wilderness
16
Great Lakes (North America)
16
Hawaii
16
Idaho
13
New York (State)
10
Kentucky
10
Minnesota
10
Southern States
9
Atlantic Coast (U.S.)
9
Louisiana
8
Arkansas
8
North Dakota
8
Pennsylvania
8
Washington (D.C.)
7
Alabama
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Call Number
Year of Publication