Last year on my old 81 citation 400, I was riding with a my neighbour and his friend, my neighbour and I had children doubling on our sleds...
His friend cut in front of me, and he likes to go slow, so we got to a small field... neighbour went right, friend went left, I cut through the middle to catch up to the dad... give her.. and I saw a tree.. for a split second... didn't even get a chance to think about brakes... thump.. it was gone... was about 2" in diameter, but about 50-75ft tall... I went back the next day during the light to look at it.
No damage to the sled...
My wife hit a tree, sorta her first ride.. she went off the path, was dodging trees trying to get back up on the path.. and a tree took her out so she rolled off the sled and then the sled ever so gently kissed a tree.. like it would have stopped 1/8" past where it did stop due to the tree.