Mount Overlord

{{short description|Mountain in Ross Dependency, Antarctica}} {{Infobox mountain | name = Mount Overlord | image = MountOverlord.jpg | image_caption = Aerial view of Mount Overlord from the southwest | elevation_m = 3395 | elevation_ref = | prominence_m = | prominence_ref = | range = | parent_peak = | listing = | location = Victoria Land, Antarctica | map = Antarctica | coordinates = {{Coord|73|10|S|164|36|E|type:mountain|display=inline,title}} | topo = | type = Stratovolcano (extinct) | volcanic_belt = McMurdo Volcanic Group | age = 7,000,000 years | last_eruption = Miocene | first_ascent = | easiest_route = }}

'''Mount Overlord''' is a very large mountain which is an extinct stratovolcano, situated at the northwest limit of Deception Plateau, 50 miles inland from the Ross Sea and just east of the head of Aviator Glacier in Victoria Land. Its asymmetrical cone is on the edge of a plateau above Aviator Glacier. While most of the cone is ice-covered, Mount Overlord does have a {{convert|1.2|mi|km|abbr=off|sp=us|adj=on}} diameter caldera. Volcanic rocks from the western slope have been dated to about seven million years, so the volcano is thought to be extinct.

It was so named by the northern party of New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1962–63, because it "overlords" lesser peaks in the area.

thumb|none|250px|Topographic map of Mount Overlord (1:250,000 scale)

==See also== * List of volcanoes in Antarctica

==Sources== * {{cite book | editor1 = LeMasurier, W. E. | editor2 = Thomson, J. W. | title = Volcanoes of the Antarctic Plate and Southern Oceans | publisher = American Geophysical Union | year = 1990 | isbn = 0-87590-172-7 }} * {{Ski Mountaineering}}

{{DEFAULTSORT:Overlord, Mount}} Category:Three-thousanders of Antarctica Category:Volcanoes of Victoria Land Category:Mountaineer Range Category:Extinct volcanoes Category:Miocene stratovolcanoes Category:Borchgrevink Coast Category:Stratovolcanoes of Antarctica