Skiing the Pacific Ring of Fire and Beyond
        Amar Andalkar's Ski Mountaineering and Climbing Site
Ski Mountaineering Photos & Trip Reports Equipment & Info Cascade Volcanoes Ring of Fire Site Map

North America | South America | Asia | Oceania & Antarctica | Beyond the Ring | Volcanic Seven Summits | Volcano WebCams
ALASKA &
NW CANADA MAP



WESTERN U.S.
& CANADA MAP

  Rainbow Range
  Ilgachuz Range
  Itcha Range
  Silverthrone Mountain
  Mount Waddington
  Mount Munday
  Yellowstone Caldera
  Craters of the Moon
  Mammoth Mountain
  Mount Williamson
  Mount Whitney
  Humphreys Peak
  Mount Baldy
  Mount Taylor
  Valles Caldera


MEXICO &
C. AMERICA MAP






| Mammoth Mountain, still partially snowcovered in late July 1998,
seen looking south from the NW rim of Long Valley caldera
(photo by S. R. Brantley, USGS)   <click to enlarge>

Mammoth Mountain   (Long Valley Caldera)
    11053 ft (3369 m) .
Location: Sierra Nevada, Eastern California,
140 miles (225 km) SSE of Reno, NV
Lat / Long: 37.6° N, 119.0° W
Volcanic Type: Ash-flow caldera and lava dome
Volcanic Status: Active (fumarolic)
First Ascent:
First Ski Descent:
Skiable Vertical: over 3100 ft (1000 m)
Lift Served Vertical:   over 3100 ft (1000 m)
Administration:   Inyo National Forest



Mammoth Mountain is the highest point on the rim of Long Valley Caldera, which is a 10-by-20 mile (15-by-30 km) depression formed following an enormous volcanic eruption about 760,000 years ago. The mountain itself is a large lava dome extruded up along the margin of the caldera. Mammoth Mountain is well known throughout the US, since it has been the site of a major ski area for the past 40 years. The north-facing slopes on which the ski area has strung more than 20 lifts receive an average of over 360 inches of snowfall annually. The high altitude and northerly aspect combine to produce some of the best snow preservation in North America, and Mammoth's ski season often extends from late October through early July.


| Topographic map of Mammoth Mountain
(1:24,000 scale) from USGS Mammoth Mountain
and Crystal Crag <click to enlarge>
Some useful links:  

    Mammoth Mountain Ski Area
    Global Volcanism Program: Long Valley
    USGS Long Valley Observatory
    Inyo National Forest (see Inyo NF Mammoth Visitor Center)
   
   
Topographic map of the Long Valley caldera (1:250,000 scale)
    from USGS Mariposa, showing the caldera rim and the resurgent dome
    <click to enlarge>


      More photos and info about routes, access, etc. may be added in the future ...


Previous Page (Craters of the Moon) | Mammoth Mountain | Next Page (Mount Williamson)
North America | South America | Asia | Oceania & Antarctica | Beyond the Ring | Volcanic Seven Summits | Volcano WebCams
Ski Mountaineering Photos & Trip Reports Equipment & Info Cascade Volcanoes Ring of Fire Site Map

Amar Andalkar   Seattle, WA, USA   <About the Author / Contact Me>
All material on this website is ©1997-2014 by Amar Andalkar unless otherwise noted.
Page content last modified: Sunday, March 30, 2003
PHP script last modified: Monday, April 25, 2005