Assertion: mountaintop removal mining | /r/HasProperty | a form of surface mining
Facets:
value: at summit ridge
type: LOCATION
Source sentences:
text: Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining at the summit or summit ridge of a mountain.
text: Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining that involves the topographical alteration and/or removal of a summit, hill, or ridge to access buried coal seams.