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• Maine Geological Survey
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Online Surficial Geology Maps and Reports

You will need the free Adobe Reader to view these maps. If you need assistance, view our PDF Help page or contact us at mgs@maine.gov.

Regional Maps

• Simplified Surficial Geologic Map of Maine (2.1 Mb PDF file) An 11" x 17" color map showing the simplified surficial geology of Maine. Inset map shows maximum ice extent. The map also includes a generalized geologic cross section and block diagrams showing glacial recession in southern Maine.
  • Note - This map is online only, there is no printed version.
  
  
• Surficial Geology of Mount Desert Island (2.5 Mb PDF file) 1988, 23" x 29" color map. Includes locations of sites of geologic interest.
  • The Geology of Mount Desert Island - A Visitor's Guide to the Geology of Acadia National Park, Bulletin 38. Popular guide to park geology.
  
  
• Surficial Geology of the Western Half of the Augusta 1:100,000 Quadrangle (40.0 Mb PDF file) 2009, 44" x 27" color shaded relief map.
  • Glacial Ice-Flow Indicators in the Western Half of the Augusta 1:100,000 Quadrangle (27.1 Mb PDF file) 2009, 44" x 27" color shaded relief map with photos.
  • Deglaciation Features in the Western Half of the Augusta 1:100,000 Quadrangle (24.9 Mb PDF file) 2009, 44" x 27" color shaded relief map with photos.
  
  
• Surficial Geology of the Kittery 1:100,000 Quadrangle (11.5 Mb PDF file) 2007, 44" x 27" color shaded relief map.
  • Glacial Ice-Flow Indicators in the Kittery 1:100,000 Quadrangle (11.0 Mb PDF file) 2007, 44" x 27" color shaded relief map with photos.
  • Deglaciation Features in the Kittery 1:100,000 Quadrangle (9.3 Mb PDF file) 2007, 44" x 27" color shaded relief map with photos.
  
  
• Surficial Geology of the Lewiston 1:100,000 Quadrangle (44.0 Mb PDF file) 2008, 43" x 26.5" color shaded relief map.
  • Glacial Ice-Flow Indicators in the Lewiston 1:100,000 Quadrangle (27.9 Mb PDF file) 2008, 43" x 26.5" color shaded relief map with photos.
  • Deglaciation Features in the Lewiston 1:100,000 Quadrangle (27.3 Mb PDF file) 2008, 43" x 26.5" color shaded relief map with photos.
  
  
• Surficial Geology of the Portland 1:100,000 Quadrangle (26.4 Mb PDF file) 2007, 44" x 27" color shaded relief map.
  • Glacial Ice-Flow Indicators in the Portland 1:100,000 Quadrangle (18.1 Mb PDF file) 2007, 44" x 27" color shaded relief map with photos.
  • Deglaciation Features in the Portland 1:100,000 Quadrangle (16.8 Mb PDF file) 2007, 44" x 27" color shaded relief map with photos.
  
  

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Last updated on March 25, 2010

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