Mineral assessment tracts in Fairfield county, Connecticut

NA18: Sandstone-hosted Pb-Zn (30a) (Cambrian - Ordovician) , covers 1 % of this area
The number of undiscovered deposits in this tract was not estimated.
NA20: Sedimentary exhalative Zn-Pb (31a) (Cambrian - Ordovician) , covers 1 % of this area
90%50%10%5%1%
01555
NA22: Mississippi Valley, Appalachian Zn (32b) (Cambrian - Ordovician) , covers 1 % of this area
The number of undiscovered deposits in this tract was not estimated.