Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

JavaScript appears to be disabled on this computer. Please click here to see any active alerts.

Bonita Peak Mining District

EPA is committed to protecting the human health and the environment for the people in Colorado

At the Bonita Peak Mining District, EPA works with state, local, and other federal officials to implement cleanups.

Pink fireweed plant as seen on the site

Announcements

Get the latest updates on upcoming work, public notices, and other news about EPA's cleanup.

Marmot as seen on the site

Stay Connected

Sign up for the latest news and updates via govdelivery

Health & Safety

Find out about any health advisories, contamination levels, and safety precautions related to the mining district.

Read the latest news
Site History

Historic mining operations have contaminated soil, groundwater and surface water with heavy metals

Learn about site history
Site Documents & Data

Many site documents are available online, including technical reports, legal documents, and fact sheets.

Search for site documents

Storymap Collection

Through the storymap experience, you will get a look at the site through maps and photos.

View the collection
Current Activities

The site team is continuing cleanup work at the site.

Read about current activities
Community Involvement

The goal of Superfund community involvement is to advocate and strengthen meaningful community participation during Superfund cleanups.

Get Involved!