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Institution
Collection
431
Storage Gov Pub
163
Gov Pub Microfiche
146
Main Books 3rd Floor
14
Gov Pub Electronic
8
Spec Coll Energy 3rd Floor
7
Gov Pub Ref 1st Floor
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5
Juv Coll 2nd Floor
4
Storage Books
2
New Books 1st Floor
2
Oversize 3rd Floor
2
Spec Coll 3rd Floor
1
Microfilm 2nd Floor
1
Ref Coll 1st Floor
1
Storage Folded Maps
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Format
Subject
57
Geology
34
Water quality
32
Coal
28
Historic sites
27
Mines and mineral resources
25
Pennsylvania
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24
Groundwater
22
Hydrogeology
19
Pennsylvania History
18
Water-supply
17
Geology, Stratigraphic
14
Coal mines and mining
14
Groundwater flow
14
History
13
Groundwater Pollution
13
Historic sites Law and legislation
13
Hydrology
11
Groundwater Quality
11
National parks and reserves
11
Sediment transport
11
Water Pollution
10
Land titles Registration and transfer
10
Steel industry and trade History
9
Anthracite coal
9
Coal preparation
9
Natural gas
9
Nutrient pollution of water
9
Railroads History
9
Stream measurements
9
Uranium ores
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Author
161
Geological Survey (U.S.)
51
United States. National Park Service
36
United States. Bureau of Mines
22
Sloto, Ronald A.
16
Reed, Lloyd A.
16
United States. Congress. House. Committee on Resources
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16
United States. Congress. Senate. Committee on Energy and Natural Resources
14
Chester County Water Resources Authority
14
Educational Resources Information Center (U.S.)
14
Pennsylvania. Department of Environmental Protection
14
United States. Environmental Protection Agency
13
America's Industrial Heritage Project
12
Pennsylvania. Bureau of Topographic and Geologic Survey
12
United States. Department of the Interior. Southwestern Pennsylvania Heritage Preservation Commission
11
Pennsylvania. Department of Environmental Resources
11
United States. National Park Service. Denver Service Center
9
United States. Administration on Aging
8
Historic American Buildings Survey/Historic American Engineering Record
8
U.S. Fish and Wildlife Service
7
Fishel, David K.
7
Northeastern Forest Experiment Station (Radnor, Pa.)
7
Senior, Lisa A.
7
Susquehanna River Basin Commission
7
United States,
6
Conger, Randall W.
6
Dowd, James J.
6
Epstein, Jack Burton, 1935-
6
Koerkle, Edward H.
6
Langland, Michael J.
6
Pennsylvania. Department of Transportation
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Language
Genre
20
Biographies
11
Case studies
8
Catalogs
7
Statutes and codes
6
Technical reports
5
Bibliographies
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5
Conference papers and proceedings
5
Diaries
5
Illustrated works
4
Exhibition catalogs
4
Literature
4
Sources
4
Statistics
3
Autobiographies
3
Gazetteers
3
Guidebooks
3
Handbooks and manuals
3
Maps
2
Congresses
2
Nomenclature
1
Art
1
CMU author
1
Directories
1
Drama
1
Geological maps
1
In art
1
Longitudinal studies
1
Mine maps
1
Nonfiction
1
Oral histories
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Literary Form
Era
13
19th century
12
18th century
12
Colonial period, ca. 1600-1775
11
Revolution, 1775-1783
8
20th century
7
To 1775
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6
Ordovician
5
1732-1799
4
1706-1790
3
1775-1865
3
Cambrian
3
Cretaceous
3
Devonian
3
Precambrian
2
1644-1718
2
1731-1802
2
1761-1849
2
1775-1783
2
1872-1951
2
1883-1935
2
Civil War, 1861-1865
2
Pennsylvanian
2
Permian
2
Silurian
1
1660-1714
1
1674-1751
1
1697-1784
1
1720?-1782
1
1728-1786
1
1730-1802
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Region
Pennsylvania
77
Philadelphia
75
United States
27
New Jersey
18
Chester County
17
Pittsburgh
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16
New York (State)
15
Maryland
15
Philadelphia (Pa.)
15
West Virginia
12
Gettysburg National Military Park (Pa.)
12
Lancaster County
11
Bucks County
11
Delaware
11
Fayette County
10
Alaska
10
Cambria County
10
Scranton
9
Ohio
8
Allegheny County
8
Delaware Water Gap National Recreation Area (N.J. and Pa.)
8
Somerset County
8
Steamtown National Historic Site (Scranton, Pa.)
6
Carbon County
6
Gettysburg National Military Park
6
Johnstown Flood National Memorial (Pa.)
6
Virginia
5
Allegheny National Forest (Pa.)
5
Allegheny Portage Railroad National Historic Site (Pa.)
5
California
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Call Number
99
T - Technology
81
Q - Science
63
E - United States History
60
F - General American History
56
H - Social Science
53
G - Geography, Anthropology, Recreation
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38
K - Law
20
A - General Works
16
N - Fine Arts
6
L - Education
6
R - Medicine
5
S - Agriculture
4
B - Philosophy, Psychology, Religion
2
P - Language and Literature
1
C - Historical Sciences
1
D - World History
1
J - Political Science
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Year of Publication