Usas Escarpment
Script error: No such module "Location map". Usas Escarpment (Script error: No such module "Coordinates".) is an expansive but discontinuous north-facing escarpment in Marie Byrd Land, Antarctica. It is about Script error: No such module "convert". long, extending roughly west to east along the 76th parallel south from where the elevation of the snow surface descends toward the Ruppert Coast and Hobbs Coast. The position of the escarpment coincides with the north slopes of the Flood Range, Ames Range, McCuddin Mountains, and the eastern peaks of Mount Galla, Mount Aldaz and Benes Peak.Template:Sfn
Location
The western end of the range is north of the Executive Committee Range. Mount Galla is towards the northeast end. Mount Aldaz and Benes Peak are further to the east.
Exploration and name
The escarpment was observed by members of the United States Antarctic Service (USAS), 1939–41, and in ensuing scientific reports was referred to as 76th Parallel Escarpment. The approved name is an acronym for the discovery expedition.Template:Sfn
Features
Features of the eastern end of the escarpment, from west to east, are
Mount Galla
Script error: No such module "Coordinates".. Snow-capped mountain Script error: No such module "convert". high which rises above the Usas Escarpment, Script error: No such module "convert". east of Mount Petras in the McCuddin Mountains. Mapped by the United States Geological Survey (USGS) from surveys and United States Navy air photos, 1959-65. Named by the United States Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Edward J. Galla, United States Navy, who was medical doctor and leader of support personnel at Byrd Station, 1959.Template:Sfn
Mount Aldaz
Script error: No such module "Coordinates".. A projecting-type mountain Script error: No such module "convert". high that barely protrudes from the ice-covered Usas Escarpment, Script error: No such module "convert". east-southeast of Mount Galla. The mountain is mostly ice covered, but has notable rock outcropping along its northern spur. Surveyed by USGS on the Executive Committee Range Traverse of 1959. Named by US-ACAN for Luis Aldaz, Meteorologist and Scientific Leader at Byrd Station, 1960.Template:Sfn
Benes Peak
Script error: No such module "Coordinates".. A peak Script error: No such module "convert". high that is almost entirely snow covered, situated along the Usas Escarpment, Script error: No such module "convert". east of Mount Aldaz. Surveyed by USGS on the Executive Committee Range Traverse of 1959. Named by US-ACAN for Norman S. Benes, USARP meteorologist at Byrd Station, 1961.Template:Sfn
See also
References
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Sources
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