Maine geologic map data

Online link https://mrdata.usgs.gov/geology/state/state.php?state=ME
Description A GIS database of geologic units and structural features in Maine, with lithology, age, data structure, and format written and arranged just like the other states.
Publication U.S. Geological Survey Open-File Report 2006-1272

States or counties

Geologic units and structural features, mercator projection
Geologic units and structural features, mercator projection