EPA Official Bonita Peak Update Newsletters

Older newsletters are available on the EPA Official Bonita Peak Update Newsletters archive page.

2023

2022

2021

2020

Mapping

Approximately 38 miles of the Bonita Peak mine workings are shown on the map. More workings exist than are shown, and additional detail could be added in the future. The Sunnyside Mine workings shown are approximately 30 miles, Gold King workings shown are approximately 6 miles, Mogul workings shown are approximately 1.4 miles, and Red and Bonita workings shown are approximately 0.4 miles. Mapping provided by the CO Division of Reclamation, Mining and Safety.