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Home > Explore! > Bedrock Geology > 1933 Keith Map > Figure Index > Figure K3


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volcanic rocks of northern Maine belt

A: Part of the northern Maine belt, north of Mt. Katahdin. Volcanic rocks are in red (rh) and bright green (md).





volcanic rocks of the coastal volcanic belt

B: Part of the coastal volcanic belt in the mid-coast area. Volcanic rocks are in orange (tf) and bright green (md).





Two Main Belts of Volcanic Rock
Detail is comparable to that of modern maps
Map source: Arthur Keith, 1933

Last updated on October 6, 2005