Block Mountain (Antarctica)

Block Mountain
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height	1460 m
location	Alexander I Island , West Antarctica
Mountains	Douglas Range
Coordinates	70 ° 27 ′ 58 ″ S , 68 ° 51 ′ 0 ″ W Coordinates: 70 ° 27 ′ 58 ″ S , 68 ° 51 ′ 0 ″ W

The Block Mountain is a very prominent, block-shaped and 1460 m (according to the UK Antarctic Place-Names Committee 1250 m ) high mountain on the West Antarctic Alexander I Island . It rises at the eastern end of the Douglas Range immediately south of the Transition Glacier . Its almost vertical north, east and south flanks meet at almost right angles. At its northeast corner it is connected to Tilt Rock by a low rock spur .

Aerial photographs taken by the American polar explorer Lincoln Ellsworth on his Antarctic flight on November 23, 1935 were used by the American cartographer WLG Joerg for mapping. Participants in the British Graham Land Expedition (1934–1937) led by the Australian polar explorer John Rymill carried out a survey in 1936. This was refined in 1949 by the Falkland Islands Dependencies Survey , which descriptively named the mountain.

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