Mammoth Mountain is a resort in California (United States) skied between 2424 and 3369 metres, with 3,500 acres of skiable terrain and 25 lifts.
Mammoth Mountain is in California, United States, with the base at 2424 m and the top at 3369 m.
Mammoth Mountain has announced that it opens on November 13, 2026 for the 2026/27 season. The date is published by mammothmountain.com, and the resort can still move it if the snow does not arrive; whatever date is current is kept at https://www.caranva.app/en/esqui/fechas-apertura/mammoth-mountain.
Mammoth Mountain is expected to close for the 2026/27 season on May 25, 2027. The real date depends on how the snow holds up at the top (3369 m) late in the season, and the resort usually announces it only a few weeks ahead: the up-to-date version is at https://www.caranva.app/en/esqui/fechas-apertura/mammoth-mountain.
It changes daily and the resort itself publishes it every morning: snow depth by altitude, open runs and open lifts. The Mammoth Mountain daily report and forecast are at https://www.caranva.app/en/nieve/usa/mammoth-mountain, and the live cameras at https://www.caranva.app/en/webcams/esqui/mammoth-mountain. When it blows hard, the most exposed lifts are usually the upper ones (3369 m), so it is worth checking before driving up.
Between 2424 and 3369 metres, a vertical drop of 945 m. That difference is why the snow is not the same across the whole resort on the same day: the upper slopes hold up better late in the season, while the lower part, at 2424 m, is the first to feel rain or warm weather. That is why the Mammoth Mountain report is read by altitude band, at https://www.caranva.app/en/nieve/usa/mammoth-mountain.
3,500 acres of skiable terrain, 180 runs and 25 lifts, between 2424 and 3369 m. North America measures its size in acres rather than kilometres of piste, and that is the figure the resort itself publishes in its fact sheet.
On Caranva you book the full kit for Mammoth Mountain — skis, boots and poles, or a snowboard if you prefer — at https://www.caranvasports.com/products/ski-rental-mammoth: you pick the dates and give your height, weight, shoe size and level, and the gear is waiting assembled with the bindings set to those figures. You pay online, you skip the sizing counter, and you can swap the gear in the shop if something does not fit. The alternative is walking into a shop at the resort on a first-come basis, which over a bank holiday or at Christmas means queuing for whatever is left.
Yes. The live Mammoth Mountain webcams, with piste conditions and the snow report, are at https://www.caranva.app/en/webcams/esqui/mammoth-mountain.