View data as of
Bristlecone
CA
Historical data for the Bristlecone trail at Mammoth Mountain.
Status Timeline
Current Season
Snowfall(25 days)
Closed(4)
Groomed(4)
Recent Changes
Feb 21, 2026, 11:01 AMLatest
Closed→Groomed
Feb 17, 2026, 05:00 PM
Groomed→Closed
Feb 13, 2026, 11:30 AM
Closed→Groomed
Jan 13, 2026, 10:00 AM
Groomed→Closed
Jan 7, 2026, 10:30 AM
Closed→Groomed
Jan 5, 2026, 04:30 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
49 daysOpen
0 daysHold
0 daysGroomed
83 daysUnknown
0 days