Abstract: An improved trail groomer apparatus having multiple components arranged in an integrated ensemble is herein disclosed. The preferred embodiments of this trail groomer comprises a rectilinear frame having, arranged in series, a power tiller, a pulverizer assembly and a compacting roller. These functional components turn over the irregular and often hard packed surface of snow and ice, or earth, grind or pulverize it into a fine powder or granule material and thereafter compact it into a smooth, rut-free trail.