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Institution
Collection
Format
Subject
1,856
Geology
856
Geology, Stratigraphic
680
Mines and mineral resources
359
Paleontology
253
Groundwater
178
Water quality
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142
Ore deposits
142
Petrology
129
Water-supply
119
Earthquakes
116
Uranium ores
112
Geochemistry
111
California
104
Hydrology
97
Water Pollution
85
Stream measurements
80
Paleobotany
78
Alaska
77
Volcanic ash, tuff, etc
75
Geology, Structural
73
Coal
69
Sedimentation and deposition
64
Igneous rocks
63
Geophysics
60
Earth sciences
60
Hydrogeological surveys
56
Floods
52
Arizona
52
Gold ores
51
Colorado
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Author
2,699
Geological Survey (U.S.)
180
U.S. Atomic Energy Commission
114
U.S. Fish and Wildlife Service
68
United States. National Aeronautics and Space Administration
55
United States. National Park Service
49
Smithsonian Institution. Press
more ...
47
Rocky Mountain Research Station (Fort Collins, Colo.)
46
United States. Bureau of Land Management
45
United States. Bureau of Mines
38
Geological Survey (U.S.),
34
Marshall, R. B. 1867-1949
32
National Wetlands Research Center (U.S.)
32
Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
31
Kentucky Geological Survey
28
National Science Foundation (U.S.)
28
National Water-Quality Assessment Program (U.S.)
28
United States. Department of Energy
28
United States. National Oceanic and Atmospheric Administration
24
Sims, P. K. 1918-2011
23
Smith, Philip S. 1877-1949
23
Stover, Carl W.
23
U.S. Fish and Wildlife Service. Region 1
23
United States. Bureau of Reclamation
22
Cobban, William A., 1916-2015
22
Imlay, Ralph W. 1908-1989
22
Moffit, Fred H. 1874-1958?
22
Rabbitt, Mary C.
19
Mertie, John Beaver, 1888-1980
19
Sando, William Jasper
19
U.S. Army Engineer Waterways Experiment Station. Coastal Ecology Group
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Language
Genre
133
Conference papers and proceedings
126
Bibliographies
110
Periodicals
92
Maps
83
Congresses
71
Technical reports
more ...
56
Abstracts
55
Handbooks and manuals
38
Statistics
19
Nomenclature
18
Classification
15
Catalogs
15
Guidebooks
14
Databases
13
Surveys
12
Directories
12
Tables (Data)
11
Illustrated works
11
Indexes
10
Identification
9
Dictionaries
9
Government publications
9
Literature
9
Serial publications
8
Topographic maps
7
Graphs
7
Observations
6
Geographic information systems
5
Geological maps
5
Popular works
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Literary Form
Era
186
Cretaceous
109
Tertiary
78
Precambrian
69
Eocene
68
Cenozoic
67
Permian
more ...
65
Miocene
62
Paleozoic
50
Mississippian
48
Pennsylvanian
46
Jurassic
45
Mesozoic
45
Ordovician
44
Quaternary
43
Devonian
40
Pleistocene
40
Triassic
36
Proterozoic
32
Oligocene
25
Cambrian
24
Pliocene
22
Silurian
20
Paleocene
19
Carboniferous
15
Holocene
12
Archaean
9
Neogene
3
1834-1902
3
19th century
3
Paleogene
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Region
892
United States
490
Alaska
453
California
374
Colorado
263
Nevada
242
Utah
more ...
224
Wyoming
222
Arizona
214
Montana
179
Idaho
158
New Mexico
146
Oregon
141
Washington (State)
75
New York (State)
74
Texas
72
West (U.S.)
70
Kentucky
70
Pennsylvania
68
Virginia
66
Florida
63
Hawaii
61
North America
61
South Dakota
60
Michigan
55
Kansas
51
Wisconsin
46
North Carolina
46
Tennessee
44
Arkansas
40
Ohio
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Call Number
Year of Publication