![A valley fill with rocks replacing the buried streambed in the background and the surviving stream in the foreground](/sites/default/files/multimedia_images_2018/201812us_coal_photo4.jpg)
A valley fill with rocks replacing the buried streambed in the background and the surviving stream in the foreground
© 2018 Human Rights Watch
A valley fill with rocks replacing the buried streambed in the background and the surviving stream in the foreground