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Mounts Frakes (left) and Steere (right) from the northeast
(U.S. Navy photo) <click to enlarge>
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Mount Frakes
11998 ft (3654 m)
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Location: |
Crary Mountains of eastern Marie Byrd Land, Antarctica |
Lat / Long: | 76.8° S, 117.7° W |
Volcanic Type: | Shield volcano with caldera |
Volcanic Status: | Dormant / extinct |
First Ascent: | |
First Ski Descent: | |
Skiable Vertical: | over 6500 ft (2000 m) |
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Mount Frakes is the third highest volcano in Antarctica and the highest point in the Crary Mountains.
The relatively smooth and uneroded cone is about 4 million years old and has been constructed on the
southeast flank of the older Mount Steere. Atop the summit is a
nearly-circular 1.5 mile (2.5 km) wide caldera, which is so flat that the high points on the eastern
and western rims differ in height by only a few feet. Satellite cinder cones on the lower flanks of
the volcano have been dated to less than 2 million years, so future volcanic activity is certainly
possible given the long intermissions between eruptions which are typical of the Marie Byrd Land
volcanoes.
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Some useful links:
United States Antarctic Resource Center
USGS Atlas of Antarctic Research (online maps & photos)
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Topographic map of Mounts Frakes and Steere (1:250,000 scale)
from USGS Crary Mountains
<click to enlarge>
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More photos and info about routes, access, etc. may be added in the future ... |
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