Past ProducerGranite, Copper, Sulfur-PyriteUndergroundUSGS MRDS
Location
State
New Hampshire
County
Grafton
Coordinates
44.32806, -71.94447
Commodities
Tertiary
Granite, Copper, Sulfur-Pyrite
Mine Details
Status
Past Producer
Type
Underground
Data Source
USGS MRDS
Source ID
10223104
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.