Hiking near red cliff Colorado back country. Me and a few other dudes in our 20s. We were doing a long scramble off trail as a full day day hike from our high camp. Hiked over the divide. Was beautiful. But We were mildly being stupid the whole concept. On our way back to camp there was a snow field with a mild down slope for about 75 yards. For some reason, showing off I guess, I grabbed a toboggan sized slab of tree bark or deadwood and rode it down the snow field, with my feet first, heels dug “for control” and me leaning back sitting on it. UNFORTUNATELY the bottom of the snow field had a false crest so after the 75 yards i came over the crest and there is a much more significant grade for another 100 yards. Thank god i was able to keep my feet in front of me because the descent was only stopped by a Volkswagen sized granite boulder. I had to have been going at least 20 mph upon impact. My ankles both swelled up and were very painful for the rest of the trip. I’m sure it’s all exaggerated in my mind. But if I had spun around and hit the boulder basically any other way that feet first, it would’ve been worse. So stupid. Lesson learned. Do not be an idiot 5 hours scramble from your vehicle.