Government Information Guide

The Census Bureau is the leading source of quality data about the nation's people and economy, including maps.

A combination of Google maps and World Bank Data, this mapping site provides access to base maps and satellite imagery.

Provides easy access to current and historical census data and demographic information for the United States from 1790 to the present. You can create customized maps and reports.

"BISON is an information system that allows users to access, explore, and download U.S. species occurrence data from participating data providers."

View current and historical local air quality maps that show ozone and particulate pollution.

Locate brown fields, sources of toxic, air or water pollution in your community. Search by zip code, address, city, etc.

The FEMA Map Service Center provides links to Flood Maps that may be selected by state, a map viewer that allows either address searches or access via map clicks to Flood Zone information. The site also includes options for download of data from the DFIRM database.

Provides access to online wetland maps, digital map data, and online purchase of wetlands maps.

This guide produced by the University of South Florida "is a guide to some of the information and data concerning the BP Deepwater Horizon oil spill in the Gulf of Mexico and the clean-up efforts. A digital library containing many more documents and sources is under development."