In 1886, Gilman grew from a mining camp into a Colorado mining town; after contamination concerns in 1984, remaining residents were removed in 1985

Nestled high in the Rockies, Gilman, Colorado, was abandoned due to severe mining contamination. Years of mining left the land marred by toxic heavy metals, including cadmium and arsenic. The Eagle Mine ceased operations in 1984 amid concerns over pollution and depleted resources. By 1986, all residents had been evacuated, and despite ongoing cleanup efforts, the Eagle River's water quality continues to pose serious ecological challenges.