Mammoth EXTENDS SEASON Until Memorial Day Despite California having itโs lowest snowfall winter on record (and maybe in 1,000 years), Mammoth is going to be staying open until Memorial Day (May 25th) this year. โFor the past 27 years, weโve been skiing and riding on Memorial Day weekend and thanks to a little late season love from Mother Nature weโre doing it again! Snow is currently coming down hard at Main Lodge which means weโll be spinning the lifts through Memorial Day. The gondola will reopen Fri May 22-Monday May 25.โ โ Mammoth [โฆ] SnowBrains | May 15, 2015 0 Comments