With the season's first full moon taking place Wednesday night, at least one party is already planned.
Buttermilk has a hut and a bonfire pit on its western peak where hikers can get warm before heading down the mountain.
Officials are concerned because the area has been trashed and damaged in the past.
According to the Aspen Daily News, popularity has increased in the past couple of years on nights with a full moon.
(Copyright 2012 by The Associated Press. All Rights Reserved.)