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Dc Creator Sm:
Pennsylvania Bureau of Topographic and Geologic Survey
Dc Subject Sm:
Imagery and Base Maps
Time Period:
1950-1999
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Resource Class
Collections (1)
Datasets (2,240)
Imagery (2,838)
Maps (5,046)
Other (1)
Web services (1,732)
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Aerial photographs (536)
Aerial views (17)
Atlases (1)
Bathymetric maps (2)
Cadastral maps (370)
City maps (1)
Early maps (1)
Geological Cross Sections (2)
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Geological maps (21)
Image data (175)
Index maps (2)
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Pictorial maps (12)
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Polygon data (192)
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Remote-sensing maps (931)
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Satellite imagery (2,093)
Satellite maps (32)
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Table data (1)
Thematic maps (675)
Topographic maps (334)
Tourist maps (14)
Vector data (1,680)
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Baltimore County Open Data Portal (2)
CMAP (Chicago Metropolitan Agency for Planning) Data Hub (1)
Carver County GIS Data (1)
Center for Ancient Middle Eastern Landscapes, Institute for the Study of Ancient Cultures, University of Chicago (2,950)
Cook Central (1)
Cornell (75)
Data Downloads - Montgomery Planning (4)
Delaware Valley Regional Planning Commission (DVRPC) (4)
DuPage County GIS (2)
Franklin County Auditor, Ohio Open Data (1)
GIS Data Downloads for Geauga County Auditor, Ohio (1)
GeoDa Data and Lab (31)
Harford County Planning and Zoning Open GIS (9)
Harvard (78)
Hoosier Resilience Index: Indiana (2)
Humanitarian Data Exchange (19)
Indiana University (231)
IndianaMap (13)
Lorain County GIS Data (1)
Maryland iMap (31)
Michigan State University (104)
Michiganology (102)
Milwaukee County GIS Download (11)
Minnesota Geospatial Commons (5)
Minnesota Geospatial Information Office (MnGeo) (263)
Minnesota Legislative Coordinating Commission - Geospatial Information (LCC-GIS) (3)
Montgomery County Open Data (1,342)
Natural Resources Research Institute (54)
NebraskaMap (2)
New Jersey Department of Environmental Protection's (NJDEP) Bureau of GIS (34)
New Jersey Geographic Information Network (NJGIN) Open Data Portal (3)
Northwestern University (17)
Oakland County, MI Open data (4)
Omaha/Douglas County GIS Open Data Portal (3)
Open Data DC (48)
Open Data Minneapolis (1)
OpenDataPhilly (1)
PHLmaps (4)
Pennsylvania Spatial Data Access (PASDA) (98)
Pennsylvania State University (314)
PolicyMap (2)
Prince George's County GIS Open Data (18)
Princeton (1)
Purdue University (25)
Racine County GIS Download (1)
Rutgers University-New Brunswick (1,418)
Sarpy County GIS Portal (3)
SimplyAnalytics (1)
Social Explorer (77)
Stanford (1)
Stark County GIS Data (1)
State of Michigan Open Data Portal (2)
The Ohio State University (212)
U.S. Fish and Wildlife Service Open Data (25)
UM Matthaei Botanical Gardens and Nichols Arboretum (23)
UW Digital Collections Center (136)
UW-Madison Robinson Map Library (98)
University of Chicago (1)
University of Chicago Library GIS Data Hub (5)
University of Illinois Urbana-Champaign (212)
University of Iowa (591)
University of Maryland (5)
University of Michigan (19)
University of Minnesota (1,278)
University of Nebraska-Lincoln (41)
Waukesha County GIS Download (6)
Wisconsin Geological and Natural History Survey (22)
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