It happened just outside of Biddeford around 5:20 Tuesday evening.
The Maine Warden Service reports that 22-year-old Mark Lank of Kennebunk was heading down a trail at a high rate of speed.
He missed a turn, hit a ditch, and was thrown into the air, and reportedly landed about 50-feet from his sled.
Lank was pronounced dead at the scene.
A friend who was on a separate snowmobile told investigators that speed was a factor in the crash.