Happened Friday afternoon, my son was on his way back to the parking lot after a awesome day of riding. He stopped and was talking to a group of sledders on their way up, took off and was coming into the corner when another sled came around the corner in his lane. He remembers thinking "oh sh*t and hitting his brake causing the sled to go sideways. Woke up with people standing around him, everything blurry and spinning. The impact took off both his helmet(didn't do up because he was 2kms from parking lot -yes, I gave him hell) and backpack -still hasn't figured out how it managed to come off -was completely strapped on - shows the force of impact. Both sleds were totalled and luckily no serious injuries to either...but it could have been a lot worse.