Negative topographic changes (cuts) coincide with the divides

Example of a mountaintop mining area in which the negative topographic changes (cuts) coincide with the divides between first order drainage basins. This area is located in eastern Kentucky along the Leslie County-Perry County border. NED shaded relief is on the left, overlaid with DEM derived catchments (yellow) and stream lines (light blue). SRTM shaded relief is on the right, overlaid with topographic change polygons (blue = cut; red = fill). The area shown is about 7.7 kilometers east-west by 9.8 kilometers north-south.