Bruno Creek Tailings Impoundment

The Bruno Creek Tailings Impoundment is a tailings dam on Bruno Creek, 19 mi (31 km) southwest of Challis in Custer County, Idaho.

It serves to store tailings for the nearby Thompson Creek Mine.

At 550 ft (168 m) tall, it is the second tallest center-line tailings dam in the world.

In 2008, Phase 8 of the mine was approved which includes a raising of the dam to 750 ft (229 m).

[2] In 1994, it was discovered that acid mine drainage had been forming on the embankment since 1987.