View data as of
St. Anton (Upper)
CA
Historical data for the St. Anton (Upper) trail at Mammoth Mountain.
Status Timeline
Current Season
Snowfall(25 days)
Closed(3)
Groomed(3)
Recent Changes
Feb 21, 2026, 11:30 AMLatest
Closed→Groomed
Feb 16, 2026, 04:30 PM
Groomed→Closed
Jan 7, 2026, 10:30 AM
Closed→Groomed
Jan 5, 2026, 04:00 PM
Groomed→Closed
Nov 20, 2025, 08:00 AM
Closed→Groomed
Nov 7, 2025, 01:31 PM
Closed
Statistics
Trail Season Length119 days
Number of Days in Each State
Closed
19 daysOpen
0 daysHold
0 daysGroomed
113 daysUnknown
0 days