BREAKING: Mammoth, CA to OPEN Thursday After Getting 12-30″ of Snow! Mammoth Mountain ski resort in California just got 12-30″ of snow yesterday and just announced minutes ago that they will be opening on Thursday, November 5th instead of next week on November 11th.ย Mammoth will be the first ski resort open in California this year. “Godzilla El Nino showed up early and in true Mammoth fashion, we’re opening in TWO […] Industry News SnowBrains | November 3, 2015 4 Comments