Executive Committee Range

The Executive Committee Range is a compact volcanic mountain chain in Marie Byrd Land, Antarctica, composed of several large volcanic peaks. It was named for the U.S. Antarctic Service Executive Committee and was mapped by mid-20th-century American Antarctic expeditions.

Peaks in the range include the prominent Mount Sidley, the highest volcano in Antarctica at about 4,285 metres, along with other volcanic massifs and cones. The mountains are largely ice-covered and isolated, with volcanic structures rising above the Antarctic ice sheet.

The range lies in western Marie Byrd Land in West Antarctica at roughly 76.5 degrees south, 126 degrees west, far from permanent research stations and accessible only by specialized polar logistics.

• Volcanic range: A remote volcanic mountain chain in Marie Byrd Land composed of several large shield and stratovolcanoes; it was mapped by U.S. Antarctic expeditions in the mid-20th century.
• Highest peak: Contains Mount Sidley, which at roughly 4,285 metres is the highest volcano in Antarctica and the range's dominant peak.

What to See #

• Mount Sidley: Mount Sidley - the highest volcano within the range and the highest volcano in Antarctica, with an elevation of about 4,285 metres.
• Mount Waesche: Mount Waesche - a significant volcanic cone at the western end of the range, identifiable on satellite imagery and topographic maps.
• Mount Hampton: Mount Hampton - a broad volcanic massif within the eastern part of the range, forming one of the principal peaks mapped during early surveys.