Some very heavy caveats come with this diagram.

1. Observations are likely biased based on aspects that are visible from easily accessed points within our zone.  For instance, we don’t have good views of as many NW facing avalanche paths from town as we do E or NE.
2. Frequency of natural avalanches is not necessarily a good indicator of where you are more likely or less likely to trigger an avalanche as a human.  Some slopes have the right ingredients for human triggers but didn’t see enough loading for natural release. West facing terrain is a good example of that.

Avalanches observed 12/21-12/28 failing on persistent weak layers. Produced by Zach Guy

Road tour of avalanche activity, viewed from valley bottom along roadways near Crested Butte, looking up to 12,000 ft.   Roughly 30 natural avalanches observed, ranging from D1 to D2 in size. Most, if not all, appeared to fail on facet layers near the ground.  Majority of the slides we observed were below treeline, several near treeline on N through E aspects, and one SE aspect ATL.  Observations of alpine were limited due to vis.  No slides observed on southerly aspects below treeline; these slopes were generally bare prior to mid-December storm cycle.     -Zach Guy

Gibson Ridge. Northeast aspect below treeline

Slate River Road. NE aspect below treeline

Gibson Ridge. East aspect below treeline

Whetstone Mtn. E/SE aspect above treeline

Whetstone Mtn. East aspect near treeline

Gibson Ridge. East aspect below treeline

Peanut Lake Road. NE aspect below treeline

Peanut Lake Road. NE aspect below treeline

Washington Gulch Road. NE aspect below treeline

Natural and remotely (?) triggered slides in Washington Gulch. E aspect below treeline

Above Meridian Lake. NE aspect below treeline

Washington Gulch. NE aspect below treeline

Washington Gulch. NE aspect below treeline

Washington Gulch. NE aspect below treeline

Whetstone
East aspect Below treeline

X Chutes on Whetsone. NE aspect Near Treeline