Mammoth Mountain

Skiing on a volcano

Mammoth Mountain is a lava dome complex in California, partly within the town of Mammoth Lakes and inside the Inyo National Forest, on the boundary of Madera and Mono counties. The mountain was formed in a series of eruptions that ended 57,000 years ago, and it is still active enough to vent hazardous volcanic gases that kill trees in places. The ski area, a large one, lies mainly on the Mono County side.

Altitude

The base sits at 2,424 m and the top at 3,369 m, a vertical of about 945 m. The whole mountain, base included, is above the 2,200 m line where altitude begins to underwrite snow, and that is why the site rates Mammoth as snow-sure. The published season is December to April, though a mountain this high tends to hold its snow well into spring. A 945 m vertical on a base this high also means the whole descent is skied in thin, cold air rather than in the milder valley conditions of lower resorts.

The skiing

Some 150 km of pistes are served by 28 lifts, about 5.4 km per lift, an open layout with reasonably long lifts. No easy, intermediate and expert breakdown is published in our data. The site’s modern-lifts tag and the scale of the area suggest a mountain that can absorb crowds, and its scenery rating comes from the volcanic landscape. A lava dome is a broad, rounded form, and the numbers fit: 150 km of skiing on a mountain that rises under 1,000 m from its base means terrain spread wide rather than stacked steeply.

Town and après-ski

Mammoth Lakes is a town, and the mountain lies partly within it, so this is a resort with a proper town at its foot rather than a purpose-built base. The site rates the après-ski, which fits a place with a town’s worth of restaurants and bars rather than a handful of slope-side ones. Being inside a national forest, the surroundings are protected rather than developed.

Who it suits

Skiers who want a high, snow-sure base on the American west coast with a real town attached, and who value scenery; the volcanic setting is unlike anything in the Alps. The 150 km is enough for a week for most abilities, and the high base makes it a sound choice for early and late trips.

Practical

Reno-Tahoe (RNO) is the nearest airport in our data, roughly 218 km away as the crow flies, so a long drive is part of the trip. The season runs from December to April.