Ninety-One Mine

Past ProducerMolybdenumUSGS MRDS

Location

StateArizona
CountyPinal
Coordinates33.13842, -110.90847

Commodities

PrimaryMolybdenum
TertiaryCopper, Lead, Vanadium

Mine Details

StatusPast Producer
Deposit TypeReplacement
Data SourceUSGS MRDS
Source ID10026811

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 Pinal County

View all mines in Pinal County →

Other Molybdenum Mines in Arizona

All molybdenum mines in Arizona →