Maps and Atlases
Rhode Island Geographic Information System - The Rhode Island Geographic Information System (RIGIS) distributes open geographically-referenced datasets that represent a wide range of topics, including transportation, infrastructure, and the environment.
United States Geological Survey (USGS) - The USGS is a science organization that provides impartial information on the health of our ecosystems and environment, the natural hazards that threaten us, the natural resources we rely on, the impacts of climate and land-use change, and the core science systems that help us provide timely, relevant, and useable information.
University of Connecticut Historical Map Collection - Digitized historical maps of Connecticut, Northeast United States, New England, United States, and select maps from around the world.
University of Texas Historical Map Collection - Large collection of maps featuring many regions around the globe.