Maine: Cropland and Aquifers

http://digitalcommons.colby.edu/atlasofmaine2009/1014/thumbnail.jpg

Aquifers and Wells of Maine

http://digitalcommons.colby.edu/atlasofmaine2006/1002/thumbnail.jpg

Bedrock Geology of Maine

http://digitalcommons.colby.edu/atlasofmaine2005/1002/thumbnail.jpg