Walsh, G.J., and Ratcliffe, N.M., 1994, Digital bedrock geologic map of the Plymouth quadrangle, Vermont: U.S. Geological Survey, Open-File Report OF-94-654A-B, scale 1:24,000
Plate 1: Geologic units and outcrop map
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Walsh, G.J., and Ratcliffe, N.M., 1994, Digital bedrock geologic map of the Plymouth quadrangle, Vermont: U.S. Geological Survey, Open-File Report OF-94-654A-B, scale 1:24,000
Plate 1: Geologic units and outcrop map
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