Pluton-related; replacement, contact metasomatic, bedded, fault zone
First Production
1864
Last Production
1952
Discovery Year
1864
Data Source
USGS MRDS
Source ID
10310481
What This Means
This is an active mining operation regulated by MSHA (Mine Safety and Health Administration). Active mines operate under federal safety standards and are subject to regular inspections. If you live near an active mine, the operator is required to comply with environmental regulations including dust control, water discharge permits, and noise standards. Contact your state environmental agency if you have concerns about a specific operation.