Explore Maine Geology

Choose one of the following topics to explore the world of Maine geology. Each subject area includes virtual geology tours, field localities, frequently asked questions, fact sheets, and links to other online resources. Don't know where to start? Try searching our entire website using "Search MGS" located on the right-hand side of the banner at the top of the page.

Virtual Tour of Maine Geology

You may want to start your exploration of Maine geology by viewing our virtual tour of Maine geology slide shows.

Choose a Topic:

• Bedrock geology
• Coastal marine geology
• Fossils
• Geography
• Ground water and wells
• Hazards
• Licensure for geologists
• Maps, charts, and photos
• Mineral collecting
• Mining and quarrying
• Surficial geology
• Wetlands, lakes, and surface water

Field Localities

• Originally published on the web as the Survey's "Site of the Month," these sites include more detailed descriptions of geologic features, field trips, and localities.