Keystone Mine Area

Past ProducerZinc, Limestone, GeneralUndergroundUSGS MRDS

Location

StatePennsylvania
CountyBlair
Coordinates40.64891, -78.21251

Commodities

TertiaryZinc, Limestone, General

Mine Details

StatusPast Producer
TypeUnderground
Data SourceUSGS MRDS
Source ID10208191

What This Means

This mine is a past producer — it was once operational but is no longer actively mining. Past producer sites may still have environmental impacts including disturbed land, tailings piles, and potential water quality effects. Some past producer sites have been reclaimed, while others remain as-is. Check with your state mining or environmental agency for current site conditions.

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