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Institution
Collection
Format
Subject
539
Geology
150
Groundwater
99
Geology, Stratigraphic
95
Aquifers
92
Afghanistan
85
Geomagnetism
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67
Water table
66
Geology, Structural
63
Wildfires
62
Minerals
61
Hyperspectral imaging
54
Natural disasters
53
Fires
47
Mines and mineral resources
38
Magnetic anomalies
36
Petrology
36
Powder River Basin (Wyo. and Mont.)
34
Water quality
33
Gravity anomalies
30
Earthquakes
30
Formations (Geology)
25
Landslides
24
Faults (Geology)
22
Seismology
19
Ocean bottom
18
Marine sediments
18
Sediments (Geology)
17
Borings
17
Debris avalanches
17
Pacific Coast (Calif.)
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Author
1,444
Geological Survey (U.S.)
187
Geological Survey (U.S.),
93
Afghanistan. Department of Geological Survey
67
United States. Agency for International Development
66
Afghan Geological Survey,
66
Turner, Kenzie J.
more ...
62
Afghanistan. Idārah-i ʻUmūmī-i Jiyūdīzī va Kārtūgrāfī
62
Davis, Philip A. 1950-
61
U.S. Task Force for Business and Stability Operations
52
Clark, Perry S.
43
Bohannon, Robert G.
43
Fox, J. E. 1943-
40
Maryland Geological Survey
38
Colton, Roger B. 1924-
36
Montana Bureau of Mines and Geology
33
Higley, Debra K.
29
Afghanistan. Geological and Mineral Survey
29
Kokaly, Raymond F.,
28
McGraw, J. P.
28
Southwest Florida Water Management District (Fla.)
27
King, Trude V. V.,
23
Billingsley, George H.
22
United States. National Park Service
19
Cochran, Susan A.
18
Andreasen, David C.
18
Curtin, Stephen E.
18
Maryland. Tidewater Administration
17
Mast, Richard F. 1931-
16
Durst, S. L.
16
High-Sense Geophysics Limited
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Language
Genre
Maps
126
Topographic maps
72
Geological maps
61
Remote-sensing maps
43
Databases
30
Bathymetric maps
more ...
26
Drawings
9
Bibliographies
5
Atlases
4
Catalogs
4
Digital maps
3
Relief models
3
Remote-sensing images
2
Graphs
2
Physical maps
2
Quadrangle maps
2
World maps
1
Academic theses
1
Computer network resources
1
Conference papers and proceedings
1
Electronic books
1
Electronic government information
1
Geographic information systems
1
Geological cross-sections
1
Globes
1
Index maps
1
Indexes
1
Periodicals
1
Photographs
1
Serial publications
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Literary Form
Era
Region
257
California
202
Afghanistan
92
Nevada
86
Alaska
67
Florida
65
Arizona
more ...
56
Montana
45
Colorado
41
Powder River Basin (Wyo. and Mont.)
41
Washington (State)
38
San Diego County
37
Utah
35
Mohave County
35
San Bernardino County
32
Wisconsin
31
Maryland, Southern
30
United States
29
Oregon
28
New Mexico
26
Virginia
24
New Hampshire
22
Lincoln County
20
Idaho
20
Los Angeles County
18
Pacific Coast (Calif.)
17
Floridan Aquifer
17
Massachusetts
17
McCone County
17
Riverside County
15
California, Southern
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Year of Publication