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Ottawa County Engineer's and Auditor's Offices
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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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Humanitarian Data Exchange (6,701)
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Indiana University (14,884)
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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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MapHub (1)
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Natural Resources Research Institute (106)
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NebraskaMap (152)
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Pennsylvania State University (3,888)
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Princeton (1,004)
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Russian Military Topographic Map Collection (3)
Rutgers University-New Brunswick (4,554)
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The Ohio State University (255)
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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)
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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)
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York County, PA GIS Open Data Portal (50)
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