Field Report
Aspen - CO
2025/03/01
Backcountry Area: Aspen
Author: Dylan Craaybeek
Organization: Forecaster, CAIC
Report Information
CAIC Notes
Avalanche observation
Area Description
Sievers Mountain
Avalanche
Saw an avalanche
Getting a better look at the very large avalanche that failed between 2:10 and 2:20 P.M. on February 28, 2025 near Sievers Mountain above West Maroon Creek.
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Date | # | Elev | Asp | Type | Trig | SizeR | SizeD | Problem Type |
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02/28/2025
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1 | >TL | NE | U | N | R3 | D3 | Persistent Slab | |
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Date and Time
02/28/2025 -
2:15pm
(known)
Start Zone Elevation
12,300 ft
Sliding Surface
O
Avg Width
1,600 ft
Area Description
Sievers Mountain
Avalanche Comments
The avalanche likely failed as water percolated to the weak layer on the southeast-facing aspect of the bowl feature and then propagated over a thousand feet across the slope into a dry snowpack on the northeast-facing aspect of the bowl. |
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