Geoportal
About
News
Help
Feedback
Advanced Search
Clear search
Within search
Dc Creator Sm:
United States General Land Office
Dc Rights S:
Public
Time Period:
1950-1999
Search Field One
Keyword
Title
Place
Publisher/Creator
Text Field One
AND
OR
NOT
Search Field Two
Keyword
Title
Place
Publisher/Creator
Text Field Two
AND
OR
NOT
Search Field Three
Keyword
Title
Place
Publisher/Creator
Text Field Three
AND
OR
NOT
Search Field Four
Keyword
Title
Place
Publisher/Creator
Text Field Four
Limit Results By
Resource Class
Collections (1)
Datasets (2,247)
Imagery (2,840)
Maps (5,046)
Other (1)
Web services (1,741)
Websites (2)
Resource Type
Aerial photographs (536)
Aerial views (17)
Atlases (1)
Bathymetric maps (2)
Cadastral maps (370)
City maps (1)
Early maps (1)
Geological Cross Sections (2)
Geological cross-sections (1)
Geological maps (21)
Image data (175)
Index maps (2)
Line data (9)
Mine maps (13)
Mixed data (22)
OpenIndexMaps (3)
Outline maps (5)
Photographs (1)
Physical maps (6)
Pictorial maps (12)
Point data (18)
Polygon data (192)
Raster data (71)
Regional atlases (1)
Remote-sensing maps (931)
Road maps (18)
Satellite imagery (2,095)
Satellite maps (32)
Sketch maps (9)
Table data (1)
Thematic maps (675)
Topographic maps (334)
Tourist maps (14)
Vector data (1,687)
Provider
Baltimore County Open Data Portal (5)
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 (30)
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 (1,353)
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 (2)
Northwestern University (17)
Oakland County, MI Open data (4)
Omaha/Douglas County GIS Open Data Portal (3)
Open Data DC (46)
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 (22)
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)
Year
Begin
–
End
Big Ten Academic Alliance Geoportal
News & Updates
About Us
Contact Project Team
Big Ten Academic Alliance Homepage