Building In Restoration from the Start

From the beginning, the Stibnite Gold Project was designed with environmental restoration in mind. At Perpetua Resources, we know restoring the land and sourcing critical minerals for our country are goals that can exist in harmony. Revenue from mining funds restoration, allowing both to move forward together.

Sign reading "East Fork South FK. Salmon road"
the harm

From Past to Present

Stibnite was mined on and off for more than a century—much of it before environmental standards existed. When operations stopped, what remained was abandoned infrastructure, legacy waste, and disrupted ecosystems. A few million dollars was spent on restoration in the 1990s, but it wasn’t enough to address the scale of the damage. Today, the site requires a modern, comprehensive response—one that no previous operator proposed or delivered.

the Solution

From Impact to Opportunity

The Stibnite Gold Project is designed to address these impacts directly—pairing mining with restoration work that begins early and continues throughout the life of the project.

Rebuilding the River System

A 0.9-mile fish passage tunnel will reconnect the river before mining begins, with plans to restore a natural channel long-term.

Removing and Securing Legacy Waste

Millions of tons of historic mine waste will be relocated and stored in a modern, lined facility to prevent further contamination.

Engineering for Recovery

At Blowout Creek, an engineered rock drain and rebuilt stream channel will stop sediment at the source and allow wetlands to recover.

2 field workers operating on a mountain

Environmental Outcomes

Water drop

Improved Water Quality

Legacy waste removed and isolated from the watershed.

River

Reconnected River Systems

The river will be restored to a natural, flowing channel.

Leaping salmon

Restored Fish
Passage

Salmon, steelhead, and bull trout regain access to upstream habitat.

Plant

Healthier
Wetlands

Improve habitat, water flow, and ecological function.

At Stibnite, restoration is designed as a permanent solution—built to perform for generations and supported by long-term monitoring and accountability. To-date, Perpetua has provided $160 million to guarantee this work takes place.

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Explore Our Library

Find reports, studies, and supporting documents related to the Stibnite Gold Project and its progress.