The Arizona Geological Survey's website hosts an interactive map of the geology of Arizona. Users can select individual units to see brief descriptions, as well as stratigraphic relationships and depositional environments for sedimentary rocks.

Click here to access the AZGS interactive map.

Source: Arizona Geological Survey

The NC OneMap initiative, directed by the North Carolina Geographic Information Coordinating Council, provides a huge amount of information on North Carolina's geology, natural resources, and environmental management, including:

The Michigan Department of Environmental Quality's GeoWebFace website provides a large amount of information on Michigan's geology and natural resources in interactive map form, including:

The Michigan Geological Survey's GIS website hosts interactive maps of the surface and bedrock geology of Michigan.

The geological maps can be overlain on street, topographic or aerial photographic maps. The GIS data used to create these maps can be purchased on the website for further use and analysis.

Click here to access the MGS interactive geologic map of Michigan.

Source: Michigan Geological Survey

The results of the U.S. Geological Survey's (USGS) National Geologic CO₂ Storage Assessment (2013) are available in interactive map form. Detailed information is available on published and unpublished storage assessments for 36 sedimentary basins. Each basin can be clicked on for more information, including:

The United States Geological Survey's (USGS) geologic map of the state of Hawai'i provides a series of printable color maps of the surface geology for each island in the state of Hawai'i. Users can also download metadata for the maps, GIS database files, and spreadsheets of geochemical and radiometric age data for different lava flows. 

Click here to access the USGS geologic map of Hawai'i.

Source: U.S. Geological Survey

The United States Geological Survey's (USGS) online interactive map tool provides access to a visual GIS database of geological data from Georgia, including access to publications and the ability to download GIS data.

The interactive map allows users to view surface geology and click anywhere on the map to access scientific data and source publications.

Click here to access the USGS interactive geologic map of Georgia

Source: U.S. Geological Survey

The Florida Geological Survey provides a huge amount of information on Florida's geology and natural resources in interactive map form, including:

The Connecticut Geological Survey's (CGS) map of surficial aquifer potential shows the areas with high potential for groundwater supply based on the thickness of coarse-grained deposits. Colors on the map indicate the thickness of coarse-grained deposits and the thickness of fine-grained deposits where they occur over coarse-grained sediments.

Click here to access the CGS's map of surficial aquifer potential in Connecticut.