Oregon No. 3 Mine

Past ProducerQuartzUSGS MRDS

Location

StateColorado
CountyJefferson
Coordinates39.39527, -105.22086

Commodities

PrimaryQuartz
SecondaryREE
TertiaryNiobium (Columbium), Tantalum, Manganese, Thorium

Mine Details

StatusPast Producer
Last Production1968
Data SourceUSGS MRDS
Source ID10013719

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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