Old Reliable Mine

Copper past producer · Pinal County, Arizona

Past ProducerCopperUSGS MRDS

Location

StateArizona
CountyPinal
Coordinates32.75204, -110.48985

Commodities

PrimaryCopper
SecondarySilver
TertiaryBarium-Barite, Molybdenum

Mine Details

StatusPast Producer
First Production1890
Last Production1981
Discovery Year1863
Data SourceUSGS MRDS
Source ID10103740
This siteNearby records

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Nearest Recorded Sites

SiteDistanceCommodityStatus
Gamblers Tunnel0.2 miCopperProspect
Unnamed Prospect near San Manuel, AZ0.2 miCopperOccurrence
Unnamed Prospect near San Manuel, AZ0.4 miCopperOccurrence
Clark Mine0.4 miCopper, SilverProducer
American Eagle Mine0.4 miCopperPast Producer
Unnamed Prospect near San Manuel, AZ0.4 miCopperOccurrence
Fortuna0.4 miCopperPast Producer
Childs-Aldwinkle Mine0.4 miMolybdenum, CopperPast Producer
Copper Giant Mine0.5 miCopperPast Producer
Glory Hole Mine0.5 miOccurrence
Unnamed Prospect near San Manuel, AZ0.6 miCopperOccurrence
Unnamed Prospect near San Manuel, AZ0.7 miCopperOccurrence

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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