Monitoring Land Disturbances Caused by Coal Mining in the Powder River .
WEBJun 21, 2019 · Coal mines in the Powder River Basin of Wyoming account for approximately 41 percent of coal production in the United States, causing significant land disturbances. Without proper reclamation practices, orphan mines create barren, unstable lands unlikely to recover. ... CMAT outputs include land disturbance maps and charts .