10AM rocky Mountain Terrain Park, 420 Winter Hill Rd, Carthage, Maine. There is some high speed areas, some rock crawl areas, etc. There is a wide range of terrain, and its a pretty laid back fun place. If you are a beginner to offroad, I am more than willing to help show you around. If we get more than 10 people, it is 10% off. park fee is $25/day and there is camping on site.