Abstract: A ground-clearing apparatus for mounting on a vehicle, comprising a housing containing a rotatably mounted cylindrical drum, the cylindrical drum being provided with a plurality of teeth, and a door in the housing pivotably connected to the housing and openable in a direction away from the vehicle. Preferably, the vehicle is a track vehicle; the housing is bi-directional, containing vertically-disposed fracture boards, and is pivotable to selectively enable engagement of the plurality of teeth with the ground surface; and a V-shaped push bar is pivotably mounted on the housing. The apparatus preferably further comprises height-adjustable skid shoes on the housing for adjusting the vertical distance between the drum and the skid shoes.