Snowboarding
fromSnowBrains
4 days agoHere's What Will be Open at Mammoth Mountain, CA, for Opening Day 2025 - SnowBrains
Mammoth Mountain opens Thursday, November 20, 2025, with limited lifts, hours 8:30 a.m.–4:00 p.m., a small terrain park, and caution advised for early-season conditions.