McGinnis Mica Mine

ProspectMicaSurface-UndergroundUSGS MRDS

Location

StateNew Hampshire
CountyGrafton
Coordinates43.83077, -71.92668

Commodities

PrimaryMica
TertiaryFeldspar

Mine Details

StatusProspect
TypeSurface-Underground
Data SourceUSGS MRDS
Source ID10272169

What This Means

This location is classified as a mineral prospect or occurrence — a site where minerals have been identified but no significant mining has taken place. These sites typically have minimal environmental impact but indicate the presence of mineral deposits in the area.

Other Mines in Grafton County

View all mines in Grafton County →

Other Mica Mines in New Hampshire

All mica mines in New Hampshire →