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Hermosa Mine Expansion

Sector: Water Supply and Storage • Location: Patagonia, Arizona, United States

Source: Coyote Gulch

Project
Approved

The U.S. Forest Service granted final approval to South32's proposal to re-open and expand the Hermosa Mine in southern Arizona to extract battery materials such as manganese and zinc, along with silver and lead. The expansion includes disturbance of about 400 acres of Forest Service land, mining at a projected rate of about 4.7 million tons of ore per year, discharge of treated water, and constru

Status
Prospective
Sector
Water Supply and Storage, Energy Storage, Metal
Location
Patagonia, Arizona, United States of America
Updated
22 Jul 2026
Source
Coyote Gulch

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Project Information

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The project “Hermosa Mine Expansion” is an infrastructure initiative in the Water Supply and Storage sector, located in Patagonia, Arizona, United States. Taiyo aggregates data on it from Coyote Gulch.

Participants

Not available for this record.

Status

Original status

approved

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The U.S. Forest Service granted final approval to South32's proposal to re-open and expand the Hermosa Mine in southern Arizona to extract battery materials such as manganese and zinc, along with silver and lead. The expansion includes disturbance of about 400 acres of Forest Service land, mining at a projected rate of about 4.7 million tons of ore per year, discharge of treated water, and construction of a main access road.

Original sector

Mining

Location

Country

United States of America (USA)

State

Arizona

City

Patagonia

Source

Source

Coyote Gulch

URL

More Details

Record type

Project

Sector

Water Supply and Storage, Energy Storage, Metal

Article published date

2026-07-16

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