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Institution
Collection
Format
Subject
260
Geology
103
Geology, Stratigraphic
98
Water quality
78
Mines and mineral resources
43
Groundwater
33
Motor vehicles Recreational use
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32
Roads
31
Automobile driving
29
Ore deposits
28
Water Pollution
27
Stream measurements
27
Water-supply
26
Land titles Registration and transfer
24
Hydrology
23
Geochemistry
23
Streamflow
20
Uranium ores
19
Groundwater Pollution
19
Petrology
18
Oil-shales
16
Aquifers
16
Green River Formation
14
Environmental monitoring
14
Floods
14
Forest reserves Law and legislation
14
Groundwater Quality
14
Hydrogeology
14
Outdoor recreation
14
Paleontology
13
National parks and reserves
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Author
661
Geological Survey (U.S.),
191
Geological Survey (U.S.)
53
United States. Forest Service,
46
U.S. Atomic Energy Commission,
31
United States. Bureau of Reclamation
29
United States. Bureau of Land Management
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27
United States. Congress. Senate. Committee on Energy and Natural Resources,
23
United States,
21
U.S. Fish and Wildlife Service
21
United States. Congress. House. Committee on Natural Resources,
18
United States. Congress. Senate. Committee on Energy and Natural Resources
18
United States. Forest Service
18
United States. National Park Service
17
U.S. Fish and Wildlife Service,
16
National Renewable Energy Laboratory (U.S.),
15
Colorado River Water Conservation District (Colo.)
15
Colorado Water Conservation Board
15
National Renewable Energy Laboratory (U.S.)
15
United States. National Park Service. Natural Resource Stewardship and Science,
14
United States. Environmental Protection Agency
13
Rocky Mountain Research Station (Fort Collins, Colo.),
11
Colorado. Hazardous Materials and Waste Management Division
11
United States. Department of the Interior. Office of Inspector General,
10
Colorado Geological Survey
10
Colorado. Department of Public Health and Environment
9
Butler, David L. 1946-
9
Elliott, John G. 1951-
9
Natural Resource Program Center (U.S.),
9
United States. Bureau of Land Management. Colorado State Office
8
Colorado State Metal Mining Fund
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Language
Genre
142
Maps
49
Statistics
45
Legislative materials
30
Electronic government information
30
Road maps
24
Legislative hearings
more ...
23
Periodicals
23
Technical reports
21
Statutes and codes
14
Topographic maps
8
Case studies
7
Databases
7
Environmental impact statements
6
Guidebooks
6
Illustrated works
5
Handbooks and manuals
5
Pictures
5
Remote-sensing images
4
Directories
4
Graphs
3
Census data
3
Conference papers and proceedings
3
Nomenclature
2
Activity books
2
Bathymetric maps
2
Tourist maps
1
Annual reports
1
Bibliographies
1
Catalogs
1
Census, 2010
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Literary Form
Era
28
Cretaceous
16
Tertiary
15
Eocene
11
Precambrian
8
Pennsylvanian
7
Jurassic
more ...
7
Quaternary
5
Permian
5
Triassic
4
Oligocene
4
Paleozoic
3
19th century
2
1898-1993
2
Cenozoic
2
Holocene
2
Miocene
2
Pleistocene
1
1809-1865
1
1905-1979
1
1915 or 1916-1993
1
1922-1993
1
1925-1968
1
1929-1968
1
1967-2006
1
2001-2009
1
Cambrian
1
Carboniferous
1
Devonian
1
Mississippian
1
Paleocene
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Region
Colorado
78
Utah
63
Wyoming
37
New Mexico
35
Denver
35
United States
more ...
31
Piceance Creek Basin
23
Green River Formation
22
Rocky Mountain National Park
22
White River National Forest
20
Jefferson County
19
Clear Creek County
18
Park County
17
Gunnison County
16
Boulder County
16
White River National Forest (Colo.)
15
Eagle County
15
Piceance Creek Watershed
15
Rocky Mountain National Park (Colo.)
14
Mesa Verde National Park
13
Animas River Watershed (Colo. and N.M.)
13
Mesa Verde National Park (Colo.)
13
Yampa River Watershed
12
Denver Region
12
Mesa County
12
Rocky Flats National Wildlife Refuge (Colo.)
12
San Juan County
12
Summit County
11
Front Range (Colo. and Wyo.)
11
Great Sand Dunes National Park and Preserve
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Call Number
127
C - Historical Sciences
122
A - General Works
108
K - Law
59
E - United States History
28
Q - Science
20
H - Social Science
more ...
18
G - Geography, Anthropology, Recreation
12
T - Technology
10
J - Political Science
7
S - Agriculture
5
F - General American History
3
L - Education
3
P - Language and Literature
2
V - Naval Science
1
D - World History
1
N - Fine Arts
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Year of Publication