Mineral Resources
Online Spatial Data
National Mineral Resource Assessment 1998
Mineral assessment tracts in Northumberland county, Pennsylvania
EC01: Sandstone-hosted Pb-Zn (30a)
(Paleozoic)
, covers 19 % of this area
The number of undiscovered deposits in this tract was not estimated.
EC04: Mississippi Valley, Appalachian Zn (32b)
(Late Paleozoic)
, covers 83 % of this area
The number of undiscovered deposits in this tract was not estimated.