Mammoth Mountain, CA, Extends Ski Season to At Least July Thanks to the most snow in North America (and likely the world), Mammoth Mountain announced today that it will remain open for โwinterโ (skiing and snowboarding) operations through AT LEAST July (no firm closing day has been set). Related: A Photo Tour of the Buried Chairlifts at Mammoth Mountain, CA The announcement comes with the resortโs season snowfall record (668โ) […] Industry News SnowBrains | March 21, 2023 0 Comments