• Maine Geological Survey: 22 State House Station, Augusta, ME 04333, (207) 287-2801
  • Caldwell, D.W., 1998, Roadside Geology of Maine, Mountain Press Publishing Company: Missoula, Montana.
  • Loiselle, M.C. and W.B. Thompson, 1987, The Geology of Maine, Rocks and Minerals, Volume 62, p. 386-389.
  • Osberg, P., A.M. Hussey and G.M. Boon, eds., 1985, Bedrock Geologic Map of Maine (Scale 1:500000), Maine Geological Survey: Augusta, Maine.
  • Thompson, W.B., D.L. Joyner, R.G. Woodman, and V.T. King, 1998, A Collector's Guide to Maine Mineral Localities, 3rd ed., Maine Geological Survey: Augusta, Maine.
  • Bedrock Geology Maps of Maine
  • Surficial Geology Maps of Maine
  • The Geology of Maine