Abstract: A snow and ice-clearing track assembly (16) for a vehicle (10) is provided which has a plurality of rotatable track wheels (22-26) including a specialized drive wheel (24) together with a continuous loop, substantially imperforate track (34) disposed about and engaging the wheels (22-26). The track (34) includes a plurality of inwardly extending drive lugs (36) which are received within circumferentially spaced lug openings (56) and snow and ice-clearing passages (58, 60) on opposite sides of the central openings (60). An alternate drive wheel (70) has a pair of polyurethane rings (84, 86) on opposite sides of lug-receiving openings (78) preventing buildup of ice and snow adjacent the drive wheel.