Rock King Prospect

Past ProducerFeldspar, MicaUSGS MRDS

Location

StateColorado
CountyChaffee
Coordinates38.63222, -105.95948

Commodities

PrimaryFeldspar, Mica
SecondaryBeryllium
TertiaryTantalum, Niobium (Columbium)

Mine Details

StatusPast Producer
Discovery Year1937
Data SourceUSGS MRDS
Source ID10013782

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 Chaffee County

View all mines in Chaffee County →

Other Feldspar, Mica Mines in Colorado

All feldspar, mica mines in Colorado →