Mineral assessment tracts in Chautauqua county, New York

EC02: Sedimentary exhalative Zn-Pb (31a) (Devonian - Mississippian) , covers 100 % of this area: The number of undiscovered deposits in this tract was not estimated.
EC04: Mississippi Valley, Appalachian Zn (32b) (Late Paleozoic) , covers 97 % of this area: The number of undiscovered deposits in this tract was not estimated.