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School Yard

CA

Historical data for the School Yard trail at Mammoth Mountain.

Current Status

Closed

Difficulty

Green

Section

Canyon Lodge

Status Timeline

Current Season

11/20/20254/8/2026
Snowfall(34 days)
Closed(3)
Groomed(2)

Recent Changes

Apr 8, 2026, 08:31 AMLatest
Groomed→Closed
Feb 18, 2026, 01:00 PM
Closed→Groomed
Feb 17, 2026, 05:00 PM
Groomed→Closed
Dec 5, 2025, 12:30 PM
Closed→Groomed
Nov 7, 2025, 01:31 PM
Unknown→Closed
Aug 31, 2025, 06:00 PM
Unknown

Statistics

Trail Season Length124 days

Number of Days in Each State

Closed
162 days
Open
0 days
Hold
0 days
Groomed
123 days
Unknown
68 days