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Institution
Collection
34,261
Gov Pub Electronic
22,922
Gov Pub Microfiche
10,586
Storage Gov Pub
1,268
CO Gov Pub Electronic
923
Spec Coll Energy 3rd Floor
820
Main Books 3rd Floor
more ...
426
Electronic Access
241
Storage Gov Pub Media
62
Flat Maps 2nd Floor
59
Spec Coll 3rd Floor
59
Storage Colo Doc
39
Microfilm 2nd Floor
31
Storage Folded Maps
24
Map CD 2nd Floor
19
Storage Microfiche
17
Storage Books
7
New Books 1st Floor
6
Ref Coll 1st Floor
5
Spec Coll Oversize 3rd Floor
4
Oversize 3rd Floor
2
Microfiche 2nd Floor
1
Audio and Visual 1st Floor
1
Gov Pub Ref 1st Floor
1
Storage Spec Coll Energy
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Format
Subject
3,181
Appropriations and expenditures
2,999
Water quality
2,865
Groundwater
2,605
Rules and practice
1,781
Geology
1,334
Hydrogeology
more ...
1,333
Aquifers
1,175
Stream measurements
1,044
Water-supply
959
Groundwater Quality
955
Groundwater flow
923
Groundwater Pollution
886
Mines and mineral resources
863
Land titles Registration and transfer
850
Hydrology
805
Water Pollution
793
Streamflow
756
Auditing
720
Geology, Stratigraphic
679
Management
628
Officials and employees
529
Floods
522
Environmental monitoring
505
Water table
492
Bills, Legislative
487
Uranium ores
444
United States Foreign relations
419
Budget
409
National parks and reserves Law and legislation
399
Water resources development
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Author
15,562
Geological Survey (U.S.)
8,110
Geological Survey (U.S.),
6,026
Library of Congress. Congressional Research Service,
2,369
United States. Congress. House. Committee on Rules
1,975
United States. Bureau of Mines
1,383
United States. Congress. Senate. Committee on Energy and Natural Resources
more ...
992
United States. Congress. House. Committee on Natural Resources,
962
United States. Congress. House. Committee on the Judiciary
896
United States. Congress. House. Committee on Resources
860
United States. Congress. House. Committee on Rules,
680
United States. Congress. Senate. Committee on Energy and Natural Resources,
654
National Center for Education Statistics
639
National Water-Quality Assessment Program (U.S.)
619
United States. Congress. Senate. Committee on Homeland Security and Governmental Affairs,
589
U.S. Atomic Energy Commission. Division of Raw Materials
564
United States. Congress. Senate. Committee on Commerce, Science, and Transportation
547
United States. Congress. House. Committee on Transportation and Infrastructure
542
United States. National Park Service. Natural Resource Stewardship and Science,
529
United States. Congress. House. Committee on Natural Resources
492
United States. Congress
491
United States. Environmental Protection Agency
490
United States. Department of the Interior. Office of Inspector General,
445
United States. Congress. House. Committee on Energy and Commerce,
440
United States. Congress. House. Committee on Financial Services,
428
United States. Congress. Senate. Committee on Appropriations
425
United States. Bureau of Reclamation
424
Educational Resources Information Center (U.S.)
414
United States. Congress. Senate. Committee on Environment and Public Works
412
United States. Congress. Senate. Committee on Commerce, Science, and Transportation,
400
United States. Congress. House. Committee on Appropriations
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Language
Genre
7,279
Legislative materials
6,048
Bibliographies
2,987
Maps
2,097
Statistics
1,290
Technical reports
701
Periodicals
more ...
587
Conference papers and proceedings
236
Congresses
236
Databases
210
Handbooks and manuals
138
Topographic maps
103
Geological maps
74
Longitudinal studies
71
Case studies
68
Remote-sensing maps
67
Guidebooks
60
Serial publications
59
Catalogs
56
Bathymetric maps
49
Dictionaries
42
Rules and practice
41
Academic theses
40
Geographic information systems
38
Personal correspondence
37
Observations
36
Treaties
35
Records (Documents)
34
Surveys
33
Census data
33
Graphs
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Literary Form
Era
143
Cretaceous
82
21st century
61
Quaternary
49
Paleozoic
49
Tertiary
48
Cenozoic
more ...
40
1946-
33
20th century
29
Holocene
29
Jurassic
28
Precambrian
27
Pliocene
25
Mesozoic
25
Miocene
24
1993-2001
24
Permian
21
Pleistocene
19
2000-
17
Eocene
17
Pennsylvanian
17
Revolution, 1775-1783
15
Civil War, 1861-1865
15
Mississippian
14
Paleocene
14
Pre-Quaternary
13
1945-
13
1953-
13
2001-2009
13
Cultural Revolution, 1966-1976
13
Proterozoic
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Region
26,664
United States
2,660
California
2,449
Colorado
1,485
Alaska
1,188
Nevada
1,161
Florida
more ...
987
New Mexico
980
Washington (State)
953
Arizona
814
Texas
786
New York (State)
775
Oregon
769
Utah
719
Idaho
654
Montana
622
Wyoming
618
Pennsylvania
579
Washington (D.C.)
488
Kansas
458
Minnesota
455
Hawaii
452
North Carolina
449
Virginia
434
Massachusetts
406
Arkansas
397
Ohio
386
Missouri
384
Georgia
383
New Jersey
381
Wisconsin
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Call Number
12,235
K - Law
6,450
L - Education
4,950
T - Technology
2,735
G - Geography, Anthropology, Recreation
2,363
E - United States History
1,828
Q - Science
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1,548
H - Social Science
1,363
A - General Works
969
C - Historical Sciences
628
S - Agriculture
605
D - World History
527
J - Political Science
169
R - Medicine
162
P - Language and Literature
160
N - Fine Arts
106
F - General American History
51
U - Military Science
48
Z - Library Science
8
V - Naval Science
7
M - Music
5
B - Philosophy, Psychology, Religion
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Year of Publication