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Institution
Format
Subject
57
Water quality
35
Groundwater
27
Aquifers
18
Groundwater flow
18
Hydrogeology
17
Geology
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17
Groundwater Pollution
16
Stream measurements
15
Groundwater Quality
12
Water-supply
11
Streamflow
11
Superior National Forest (Minn.)
10
Post office buildings
10
Water Pollution
9
Geology, Stratigraphic
9
Lakes
8
Land titles Registration and transfer
7
Mines and mineral resources
7
Roads
7
Voyageurs National Park (Minn.)
6
Conservation of natural resources
6
Evaluation
6
Floods
6
Hydrology
6
Wildlife refuges
5
Automobiles Recreational use
5
Boundary Waters Canoe Area (Minn.)
5
Environmental impact analysis
5
Indian land transfers
5
National parks and reserves Law and legislation
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Author
181
Geological Survey (U.S.),
34
Minnesota. Department of Natural Resources
31
Geological Survey (U.S.)
20
United States,
19
National Water-Quality Assessment Program (U.S.)
17
Minnesota Pollution Control Agency
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14
Ruhl, J. F.,
13
U.S. Fish and Wildlife Service
11
Delin, G. N.,
11
United States. Environmental Protection Agency
10
United States. Congress. House. Committee on Natural Resources,
8
Lorenz, D. L.,
8
Payne, G. A.,
8
Tornes, L. H.
8
United States. Forest Service,
8
Wolf, R. J.
7
Metropolitan Council of the Twin Cities Area
7
Minnesota Geological Survey
7
Stark, James R.,
7
United States. National Park Service
6
Adolphson, D. G. 1928-1990,
6
Lee, K. E.
6
Lindgren, Richard J.,
6
Minnesota. Department of Transportation
6
Minnesota. Division of Waters
6
Minnesota. Legislature. Legislative Commission on Minnesota Resources
6
Superior National Forest (Agency : U.S.),
6
United States. Congress. House. Committee on Transportation and Infrastructure,
5
Andrews, William J., 1962-
5
Cowdery, T. K.
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Language
Genre
27
Maps
19
Statutes and codes
15
Legislative materials
13
Legislative hearings
10
Periodicals
9
Statistics
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5
Technical reports
3
Video recordings
2
Biographies
1
Biographical films
1
Case studies
1
Census data
1
Dictionaries
1
Documentary films
1
Electronic government information
1
Identification
1
Podcasts
1
Sound recordings
1
Surveys
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Literary Form
Era
Region
Minnesota
23
Wisconsin
19
Superior National Forest
19
United States
17
North Dakota
12
Minneapolis Metropolitan Area
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12
Voyageurs National Park (Minn.)
11
Superior National Forest (Minn.)
10
Saint Paul Metropolitan Area
9
Michigan
9
Minneapolis
9
Voyageurs National Park
8
Grand Portage National Monument (Minn.)
8
Mississippi River Watershed
8
South Dakota
7
Iowa
6
Grand Portage National Monument
6
Saint Paul
5
Boundary Waters Canoe Area (Minn.)
5
Grand Portage Reservation
5
Pipestone National Monument (Minn.)
4
Leech Lake Indian Reservation
4
Pipestone National Monument
4
Red River of the North
4
Red River of the North Watershed
3
Anoka County
3
Apostle Islands National Lakeshore
3
Apostle Islands National Lakeshore (Wis.)
3
Bemidji
3
Big Stone National Wildlife Refuge (Minn.)
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Call Number
56
A - General Works
35
K - Law
17
G - Geography, Anthropology, Recreation
12
E - United States History
10
Q - Science
5
H - Social Science
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4
J - Political Science
4
L - Education
4
T - Technology
3
S - Agriculture
3
V - Naval Science
2
F - General American History
1
C - Historical Sciences
1
D - World History
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Year of Publication