Antarctica · Sentinel Range4,852 m (15,919 ft)Mount Tyree 3D Terrain Map & Relief Model
Interactive digital elevation model (DEM) for Mount Tyree. Tilt, rotate, and inspect high-altitude summit ridges, glacial cirques, and approach routes in high-resolution 3D WebGL cartography.
Isolated snow camp pitched on the upper Patton Glacier at the foot of Tyree's monstrous northwest wall.
A steep fractured ice notch giving access to the narrow, avalanche-swept couloirs dissecting the lower face.
Exposed multi-pitch rock climbing up vertical granite steps and shattered grey slabs requiring delicate crampon moves (5.8).
A knife-edge snow and rock arête exposed to savage winds blowing across from the Ronne Ice Shelf.
The sharp, airy granite needle towering 4,852 metres above the Sentinel icefields, marking the hardest summit in Antarctica.
Total vertical rise from Tyree Base Camp (Patton Glacier) (2,650m) directly to the summit crest.
DMS: 78°24′00″ S, 85°52′00″ W. Verified against alpine geodesy baselines.
The vertical drop to the lowest contour encircling the peak with no higher summit inside it.
Surrounded by lateral moraines, active icefalls, and high glaciated ridges feeding regional river systems.
Topographic Architecture of Mount Tyree
Mount Tyree is the second-highest mountain in Antarctica at 4,852 metres (15,919 ft), located just 13 kilometres northwest of Mount Vinson in the Sentinel Range. In stark contrast to the rounded, glaciated ramps of Mount Vinson, Mount Tyree is a terrifying, sheer horn of dark metamorphic rock and steep blue ice, rising over 2,000 metres directly from its surrounding glaciers. First ascended on January 6, 1967, by Barry Corbet and John Evans via the Northwest Face, it is widely acknowledged as the most technically demanding and formidable high peak in all of Antarctica, having seen fewer than twenty ascents in mountaineering history.