An initiative of the Center for Environmental Journalism at the University of Colorado Boulder

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Decades later, abandoned mines continue to haunt Colorado’s waterways

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.

Data viz: surveying Colorado River Basin maps

This collection of Colorado River Basin maps includes public domain images and other cartographic resources for depicting the watershed.

A dry subject: how scientists map drought conditions

Scientists have a variety of measures of drought, but some are starting to use the term "aridification" to describe the long-term drying of the Southwest.