Observer Name
UAC Staff & The Avalanche Review (TAR); Lev, Perla, Fitzgerald, Marsh
Observation Date
Wednesday, August 20, 2025
Avalanche Date
Sunday, December 30, 1973
Region
Salt Lake » Little Cottonwood Canyon » Flagstaff Ridge
Location Name or Route
Flagstaff
Elevation
9,400'
Aspect
Southeast
Slope Angle
35°
Trigger
Explosive
Avalanche Type
Hard Slab
Avalanche Problem
New Snow
Depth
5'
Width
Unknown
Vertical
1,500'
Comments
Read the full set of articles on the The Avalanche Review Website:
Part 1 Peter Lev
https://theavalanchereview.org/avalanche-cycle-1973-part1/
Part 2 Ron Perla
https://theavalanchereview.org/avalanche-cycle-1973-part2/
Part 3 Liam Fitzgerald
Comments
Photos via Bob Marsh Collection at the University of Utah's Marriot Library Ski and Snowsports Archives
https://collections.lib.utah.edu/search?page=14&q=P0411+Bob+Marsh+photograph+collection&gallery=1
Avalanche File
| Attachment | Size |
|---|---|
 1974.01 Alta 1.pdf | 368.75 KB |
| 1974.01 Alta 2.pdf | 162.98 KB |
Coordinates
