Double Opening Prospect

Past ProducerFeldsparUSGS MRDS

Location

StateColorado
CountyLarimer
Coordinates40.53470, -105.38392

Commodities

PrimaryFeldspar
TertiaryBeryllium, Uranium, Phosphorus-Phosphates

Mine Details

StatusPast Producer
Last Production1941
Discovery Year1934
Data SourceUSGS MRDS
Source ID10013813

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.

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