What do you do with moguls in the summer? Are they manmade? By SWGMedia|2020-12-29T22:40:16-07:00December 29th, 2020 10:40 pm|First Timers|0 Comments Moguls are formed by skiers on virtually all ski trails that are not mechanically flattened with grooming equipment. They organize spontaneously as skiers move along a ski run, kicking up snow behind them as they turn. The kicked-up snow forms into piles, which eventually turn into moguls. Check out this time lapse video of how moguls actually move uphill over time!