Mammoth Mountain, CA, Extends Season Until at Least June 5th Mammoth Mountain, CA, has announced that it will remain open through at least June 5th. Mammoth’s spring season (its “second season,” as it’s known in the Eastern Sierra) is typically one of the longest in North America, and this year will be no different. Related: Mammoth Mountain, CA “Snow Farming:” A Dutiful Art on an Absolutely Massive Scale Mammoth opened […] Industry News SnowBrains | May 16, 2022 1 Comment