As Aspen evolved from a bucolic high-mountain meadow to an industrial city, pollution began to flow directly into the Roaring Fork River and its tributaries.
Scientists fear that eventually the toxic residue of more than a century of agricultural runoff will be blown into the air — and into the lungs of residents.
This photo gallery contains images taken by drone for our story on acid mine drainage in Colorado, which featured the Captain Jack Mill...
According to a 2017 study, there are over 23,000 abandoned mines across Colorado and 1,800 miles of streams that are impaired due to pollutants related to acid mine drainage.
Is your community’s water tainted with lead? The data might not have been reported.