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Big Ten Academic Alliance Geospatial Information Network (9)
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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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Harvard (183)
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High Country News (1)
Hoosier Resilience Index: Indiana (17)
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Humanitarian Data Exchange (6,701)
ICPSR (Inter-university Consortium for Political and Social Research) (1)
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Indiana University (14,884)
IndianaMap (378)
Iowa Emergency Operations Center (1)
Iowa Geodata (235)
IowaDOT Open Data (546)
Kenosha County, WI GIS Open Data Portal (31)
Lake County Illinois Open Data Portal (53)
Land Records Data Portal of Columbia County, WI (61)
LandScan Global Population Database (23)
Library of Congress Geography and Map Division (1)
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MapHub (1)
Maryland National Capital Parks and Planning Commission (1)
Maryland iMap (1,256)
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NebraskaMap (150)
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New Jersey Farmland Preservation Program (22)
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PHLmaps (323)
Pennsylvania Department of Conservation and Natural Resources Open Data Portal (57)
Pennsylvania Department of Environmental Protection (148)
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Pennsylvania State University (3,888)
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Pierce County GIS Open Data Portal (4)
PolicyMap (387)
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Pope County Open Data (41)
Prince George's County GIS Open Data (262)
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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Stark County GIS Data (110)
State of Michigan Open Data Portal (370)
State of Pennsylvania (1)
Summit County GIS Data (31)
The Newberry Library (2)
The Newberry Library (53)
The Ohio State University (255)
Three Rivers Park District Open Data (5)
U.S. Department of Agriculture (1)
U.S. Fish and Wildlife Service Open Data (1,987)
UM Matthaei Botanical Gardens and Nichols Arboretum (63)
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 (3,595)
University of Maryland (274)
University of Michigan (1,140)
University of Minnesota (5,995)
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Waukesha County GIS Download (45)
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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)
Wisconsin State Cartographer's Office (1)
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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