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.