Stone, J.R., Schafer, J.P., London, E.H., DiGiacomo-Cohen, Mary, Lewis, R.S., and Thompson, W.B., 1999, Quaternary geologic map of Connecticut and Long Island Sound Basin: U.S. Geological Survey, Open-File Report OF-98-371, scale 1:175,000
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Stone, J.R., Schafer, J.P., London, E.H., DiGiacomo-Cohen, Mary, Lewis, R.S., and Thompson, W.B., 1999, Quaternary geologic map of Connecticut and Long Island Sound Basin: U.S. Geological Survey, Open-File Report OF-98-371, scale 1:175,000
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