Map Collections

David Rumsey – A big collection with a fun online viewer. No downloads though.

New York Public Library Open Access Map Project – Free downloads! In case you wanted to download a cool old map and practice georeferencing

Barry MacLean Collection in Chicago – No online viewer, but he has an amazing map collection and has held the 2008 Festival of Maps

University of Chicago Map Collection

University of Texas at Austin – Perry-Castañeda Library Map Collection houses an original Carte de France as well as countless other gems

Golda Meir Map Library

Library of Congress

Harvard Map Library



Online Maps for Data Access

These websites may not provide data for downloading, but they do provide a visualization.

American Community Survey – ACS data from 2007-2012 with the option to compare results form the 1990 and 2000 censuses

Census Reporter – View basic demographic data for any geography and jurisdiction in the United States, from U.S. Census Bureau data including the decennial census and American Community Survey.

San Francisco Estuary Institute – Regional data center with interactive maps and data links on the ecosystems of California

WI DNR – Interactive Web Mapping Applications

Wetlands Mapper – National Wetlands Inventory


Pictorial Databases

Cities/Buildings Database


Tabular Databases

World Bank Data Catalog



BAAMA – Bay Area Automated Mapping Association

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