Grannis Deposit

Past ProducerCobalt, NickelSurface-UndergroundUSGS MRDS

Location

StateConnecticut
CountyLitchfield
Coordinates41.73749, -73.27234

Commodities

TertiaryCobalt, Nickel

Mine Details

StatusPast Producer
TypeSurface-Underground
Data SourceUSGS MRDS
Source ID10142905

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.

Other Mines in Litchfield County

View all mines in Litchfield County →

Other Cobalt, Nickel Mines in Connecticut

All cobalt, nickel mines in Connecticut →