Mount Tyree

Mount Tyree
Mount Tyree from East (Photo: Christian Stangl, 2011)
Highest point
Elevation	4,852 m (15,919 ft) ^[1]
Prominence	1,152 m (3,780 ft) ^[2]
Listing	Seven Second Summits
Coordinates	78°24′42″S 85°51′43″W / 78.41167°S 85.86194°W / -78.41167; -85.86194Coordinates: 78°24′42″S 85°51′43″W / 78.41167°S 85.86194°W / -78.41167; -85.86194 ^[2]
Geography
Mount Tyree Antarctica
Parent range	Sentinel Range
Climbing
First ascent	1967 by Barry Corbet and John Evans, members of Nicholas Clinch's team
Easiest route	Rock/ice climb

Annotated image of Vinson Massif shows location of Tyree, top left

Mount Tyree (4852m) is the second highest mountain of Antarctica located 13 kilometres northwest of Vinson Massif (4,892 m), the highest peak on the continent. It surmounts Patton Glacier to the north and Cervellati Glacier to the southeast.

History

Mt. Tyree was discovered in January 1958 during reconnaissance flights by the United States Navy VX-6 squadron, and mapped later that month by the Marie Byrd Land Traverse Party. The mountain was named for Rear Admiral David M. Tyree, who was commander of the U.S. Naval Support Force in Antarctica, from April 14, 1959 to November 26, 1962.^[1]

As of 2012, the summit has only been reached on five occasions, by a total of ten people, via three different routes: in January 1967 by John Evans and Barry Corbet (of Corbet's Couloir); in January 1989 by Terry ‘Mugs’ Stump; in 1997 by French alpinists Antoine de Choudens and Antoine Cayrol; and later in 1997 by Conrad Anker and Alex Lowe. On January 3, 2012 Hans Kammerlander, Robert Miller and Christian Stangl repeated the French route to make the fifth ascent. Out of ten mountaineers who successfully climbed Mt Tyree, three died in unrelated mountaineering accidents within four years of their respective ascents.^[3] The still-unclimbed south face is 2,000 metres (6,600 ft) high and one of the largest walls in Antarctica.

The climbing season is November to January, when the sun is above the horizon 24 hours a day and the air is warmest—up to −30 °C (−20 °F) near the summit. Like the nearby Mount Vinson, the mountain may be accessed by the means of a 6-hour flight from Punta Arenas, Chile to Union Glacier Camp followed by a 200 km flight on a ski plane to the base of the mountain.

Ascents

Complete ascent list of Mt. Tyree (2014)
Number	Year	Climber
1	1967	Barry Corbet John Evans
2	1985	Mugs Stump
3	1997	Antoine Chayrol Antoine de Choudens
4	1997	Conrad Anker Alex Lowe
5	2012	Hans Kammerlander Robert Miller Christian Stangl

Maps

Sentinel Range map.

Vinson Massif. Scale 1:250 000 topographic map. Reston, Virginia: US Geological Survey, 1988.
Antarctic Digital Database (ADD). Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR), 1993–2016.

References

1 2 U.S. Geological Survey Geographic Names Information System: Mount Tyree
1 2 "Mount Tyree, Antarctica". Peakbagger.com. Retrieved 2013-07-13.
↑ "Tyree - A History".

External links

"Mount Tyree" on Mountain-forecast.com
Photo of Mount Tyree on Secondseven.org
"Mount Tyree" on Peakery.com
Distant view of Tyree from Vinson on Summitpost.com

Seven Second Summits

Asia	K2 (8,611 m or 28,251 ft)

South America	Ojos del Salado (6,893 m or 22,615 ft)

North America	Mount Logan (5,959 m or 19,551 ft)

Europe	Dykh-Tau (5,205 m or 17,077 ft) or Monte Rosa (4,634 m or 15,203 ft)

Africa	Mount Kenya (5,199 m or 17,057 ft)

Antarctica	Mount Tyree (4,852 m or 15,919 ft)

Australia (continent)	Puncak Mandala (4,760 m or 15,617 ft)

Australia	Mount Townsend (2,209 m or 7,247 ft)

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