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Big Ten Academic Alliance Geospatial Information Network (8)
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Center for Ancient Middle Eastern Landscapes, Institute for the Study of Ancient Cultures, University of Chicago (8,792)
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Humanitarian Data Exchange (6,701)
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Indiana University (14,884)
IndianaMap (374)
Iowa Emergency Operations Center (1)
Iowa Geodata (235)
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Kenosha County, WI GIS Open Data Portal (31)
Lake County Illinois Open Data Portal (53)
Land Records Data Portal of Columbia County, WI (85)
LandScan Global Population Database (23)
Library of Congress Geography and Map Division (1)
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Lorain County GIS Data (85)
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MapHub (1)
Maryland National Capital Parks and Planning Commission (1)
Maryland iMap (1,249)
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National Renewable Energy Laboratory (1)
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NebraskaMap (152)
New Jersey Department of Environmental Protection's (NJDEP) Bureau of GIS (300)
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Pennsylvania Department of Conservation and Natural Resources Open Data Portal (57)
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Pennsylvania State University (3,888)
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PolicyMap (387)
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Pope County Open Data (41)
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Prince George's County Open Data Portal (13)
Princeton (1,004)
Purdue University (120)
Racine County GIS Download (41)
Ramsey County Open Data (36)
Renville County Open GIS Data (44)
Russian Military Topographic Map Collection (3)
Rutgers University-New Brunswick (4,554)
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Stanford (1,109)
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State of Michigan Open Data Portal (367)
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The Newberry Library (53)
The Ohio State University (255)
Three Rivers Park District Open Data (5)
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U.S. Fish and Wildlife Service Open Data (1,972)
UM Matthaei Botanical Gardens and Nichols Arboretum (62)
UW Digital Collections Center (2,596)
UW-Madison Robinson Map Library (6,077)
University of Chicago (71)
University of Chicago Library GIS Data Hub (34)
University of Illinois Urbana-Champaign (2,501)
University of Iowa (3,541)
University of Maryland (274)
University of Michigan (1,140)
University of Minnesota (5,990)
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Waukesha County GIS Download (37)
Waupaca County GIS Download (29)
Waushara County GIS Download (10)
Western Pennsylvania Regional Data Center Open Data (52)
Wilkin County, Minnesota Open Data (17)
Wisconsin Geological and Natural History Survey (61)
Wisconsin Rapids Online Map Portal (18)
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WisconsinView (2,170)
Wood County Open Data Portal (13)
Yellow Medicine County Hub (5)
York County, PA GIS Open Data Portal (50)
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