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Collection
9,379
Storage Gov Pub
7,131
Gov Pub Microfiche
6,149
Gov Pub Electronic
4,458
Storage Folded Maps
1,313
Storage Flat Maps
934
Flat Maps 2nd Floor
more ...
929
Spec Coll Energy 3rd Floor
344
Storage Gov Pub Media
220
Main Books 3rd Floor
61
Spec Coll 3rd Floor
56
CO Gov Pub Electronic
4
Storage Microfiche
3
Storage Periodicals
2
Ref Coll 1st Floor
2
Special Coll Flat Map
1
Microfilm 2nd Floor
1
Oversize 3rd Floor
1
Reserve 1st Floor
1
Storage Books
1
Storage Colo Doc
1
Storage Spec Coll Energy
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Format
Subject
4,942
Geology
2,229
Water quality
2,056
Groundwater
1,691
Mines and mineral resources
1,267
Geology, Stratigraphic
937
Water-supply
more ...
806
Stream measurements
804
Hydrogeology
693
Aquifers
691
Hydrology
670
Groundwater Pollution
648
Groundwater Quality
587
Groundwater flow
583
Water Pollution
563
Uranium ores
547
Geomagnetism
500
Land use, Rural
485
Geology, Structural
479
Streamflow
423
Earthquakes
401
Floods
389
Water table
377
Geochemical prospecting
357
Geochemistry
320
Water resources development
306
Ore deposits
304
Coal
268
Mars (Planet)
262
Sediments (Geology)
246
Water quality management
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Author
Geological Survey (U.S.)
797
United States. Bureau of Land Management
602
U.S. Atomic Energy Commission. Division of Raw Materials
511
U.S. Atomic Energy Commission
496
National Water-Quality Assessment Program (U.S.)
456
National Operations Center (U.S.)
more ...
379
United States. National Aeronautics and Space Administration
332
United States. Environmental Protection Agency
287
United States. National Park Service
271
United States. Department of Energy
234
United States. Bureau of Reclamation
182
United States. Forest Service
179
United States. Bureau of Mines
176
United States. Defense Mapping Agency. Hydrographic/Topographic Center
174
United States. Department of Energy. Nevada Operations Office
160
United States. Army. Corps of Engineers
134
United States. Agency for International Development
133
Kentucky Geological Survey
127
Southwest Florida Water Management District (Fla.)
114
U.S. Fish and Wildlife Service
111
United States. Bureau of Land Management. Montana State Office
107
Cobb, Edward H. 1916-1983
104
Afghanistan. Department of Geological Survey
104
United States. Bureau of Indian Affairs
100
U.S. Atomic Energy Commission. Raw Materials Operations
93
Bromery, Randolph W. 1926-2013
91
United States. Bureau of Land Management. New Mexico State Office
88
Colton, Roger B. 1924-
86
South Florida Water Management District (Fla.)
84
National Science Foundation (U.S.)
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Language
Genre
10,075
Maps
1,908
Topographic maps
416
Remote-sensing maps
371
Periodicals
355
Bibliographies
345
Statistics
more ...
287
Databases
265
Conference papers and proceedings
201
Quadrangle maps
164
Remote-sensing images
130
Technical reports
127
Bathymetric maps
125
Graphs
100
Drawings
88
Abstracts
83
Handbooks and manuals
80
Congresses
78
Outline maps
74
Charts, diagrams, etc
66
Academic theses
63
Geological maps
61
Catalogs
53
Indexes
39
Geographic information systems
39
Physical maps
39
Surveys
34
Guidebooks
33
Serial publications
31
Directories
28
Atlases
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Literary Form
Era
240
Cretaceous
137
Quaternary
110
Tertiary
92
Paleozoic
81
Cenozoic
72
Precambrian
more ...
64
Jurassic
59
Permian
58
Eocene
56
Miocene
48
Mesozoic
45
Proterozoic
42
Pliocene
40
Ordovician
38
Pennsylvanian
37
Pleistocene
36
Mississippian
33
Holocene
31
Triassic
28
Devonian
27
Oligocene
26
Paleocene
23
Cambrian
17
Silurian
14
Neogene
12
Archaean
10
Carboniferous
10
Paleogene
10
Pre-Quaternary
5
20th century
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Region
2,182
United States
1,977
California
1,627
Colorado
1,416
Alaska
1,234
Nevada
1,214
Utah
more ...
944
Arizona
941
New Mexico
860
Montana
827
Wyoming
710
Florida
672
Washington (State)
662
Texas
604
Idaho
526
Oregon
402
Pennsylvania
395
Massachusetts
387
New York (State)
356
Kansas
338
Missouri
335
Hawaii
321
Minnesota
317
Wisconsin
312
North Carolina
298
Virginia
297
Kentucky
293
Mars (Planet)
280
Michigan
276
South Dakota
261
New Jersey
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Call Number
4,704
G - Geography, Anthropology, Recreation
3,435
M - Music
3,302
Q - Science
1,825
T - Technology
47
E - United States History
41
H - Social Science
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20
Z - Library Science
19
S - Agriculture
16
F - General American History
9
A - General Works
9
N - Fine Arts
9
R - Medicine
7
C - Historical Sciences
3
D - World History
3
J - Political Science
2
K - Law
2
U - Military Science
2
V - Naval Science
1
L - Education
1
P - Language and Literature
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Year of Publication