Sources for Interactive Maps and GIS Datasets

Local

City of College Station GIS
City of Bryan GIS
Brazos County GIS
 

Texas

Texas Natural Resources Information System
Texas Department of Transportation- Texas County Highway Maps
Texas Department of Health - Data and Reports
TSIS: Texas Spatial Information System -An interactive web-based map of the state which includes administrative boundaries, transportation, natural resources and health information and census data
Digital Sanborn Maps, 1867-1970 (access to Texas only) -Sanborn maps are large-scale plans of a city or town, drawn at a scale of 50 feet to an inch. They were created to assist fire insurance companies. The maps list street blocks and building numbers. This library subscribes to the Texas maps only.

United States

National Map (USGS) - The Nation’s Topographic Map for the 21st Century—Access to high-quality, geospatial data and information from the USGS as well as Federal, State, and local partners.
National Atlas of the United States - Contains biological, geological, environmental, water and demographic data for the US.  Explore or download a comprehensive collection of small scale geospatial data from federal agencies
American Factfinder – US Census Bureau – Census data -An online source for population, housing, economic and geographic data. Results from each of these data programs are provided in the form of data sets, tables, thematic maps, and reference maps.
Enviromapper – Environmental Protection Agency -A powerful tool used to map various types of environmental information, including air releases, drinking water, toxic releases, hazardous wastes, water discharge permits, and Superfund sites.
American Memory - Library of Congress - Contains historical collections from the National Digital Library

Geospatial One Stop (geodata.gov) - Federal, state and local US data
Stat-USA – US Department of Commerce - Contains economic, business and international trade information from the U.S. government
National Geophysical Data Center - Interactive maps with data from the Sun to the Earth and Earth's sea floor and solid earth environment, including Earth observations from space
Atlas of United States Mortality, Center for Disease Control, National Center for Health Statistics
National Geographic Map Machine - Online atlas shows nearly any place on Earth, and view it by population, climate, including links to Country Profiles.
NationMaster.com- Interactive mapping and graphing site that contains data from CIA Factbook and FAO.

USGS Resources, information and interactive web sites for Geography, Geology, Water Resources and Biology.  Useful for educators or student research.

Global Change Master Directory - A Directory of Earth Science Data and Services (NASA - Goddard Space Flight Center)

GIS Data Sets

Geography Network - A global network of geographic information users and providers. It provides the infrastructure needed to support the sharing of geographic information among data providers, service providers, and users around the world. Access many types of geographic content including dynamic maps, downloadable data, and more advanced Web services.
GIS Data Depot - Data available from this site requires users to be proficient in GIS and may require access to GIS software.

Alexandria Digital Library Project – Based at UC Santa Barbara, a distributed digital library with collections of georeferenced materials
Odden’s Bookmarks - list of sites on maps and cartography

Scanned / Digitized Maps

David Rumsey Map Collection - The David Rumsey Historical Map Collection contains over 8,000 maps online and focuses on rare 18th and 19th century North and South America cartographic history materials.

University of Texas, Perry Castañeda Library Map Collections - Contains an extensive collection of digitized maps of the world, both historical and contemporary.

Geographic Resources

Geographic Information Center of the National Academies
Map Projections - from Peter H. Dana, The Geographer's Craft Project, Department of Geography, The University of Colorado at Boulder
Reference Web Resources - from the Library of Congress, Geography & Map Reading Room - Includes links to blank outline maps, historic maps, geographic and cartographic information, and where to purchase maps
Distance Calculator
Maps.com Reference Bookshelf- Includes a glossary, and descriptions of basic cartographic terms such as scale, projection and the coordinate system
SAGE (Scholastic Assistance for Global Education) -Links to maps and teaching aids provided to the educational community by the Center for International Business Studies in the Mays Business School at Texas A&M University