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Midnight Plateau
Plateau in Antarctica
Plateau in Antarctica
| Field | Value | |
|---|---|---|
| country_type | Continent | |
| country | Antarctica | |
| parent | Darwin Mountains | |
| length_km | length_orientation= | |
| width_km | width_orientation= | |
| range_coordinates | ||
| map | Antarctica |
Midnight Plateau () is a prominent ice-covered plateau, over 2,200 m high, forming the central feature of the Darwin Mountains in Antarctica. It is the only area of snow accumulation in the Darwin Mountains.
Exploration and naming
The plateau was discovered by the Victoria University of Wellington Antarctic Expedition (VUWAE) of 1962–63 and so named because the feature was visited by expedition members at midnight on December 27, 1962.
Location

Midnight Plateau is in the center of the Darwin Mountains. Mount Ellis rises over the north of the plateau. Haskell Ridge and Colosseum Ridge runs north from the plateau to the Darwin Glacier. The plateau rises above the Hatherton Glacier to the south.
Northern features
Mount Ellis
Exodus Valley
Exodus Glacier
Kennett Ridge
Friedmann Peak
Eastern features
Hale Valley
The north-most of three largely ice-free valleys that trend east from midnight Plateau in the Darwin Mountains. This valley is immediately south of Kennett Ridge. Named after Mason E. Hale (d.), lichenologist, National Museum of Natural History (Smithsonian), Washington, DC, who worked about six austral summers in the McMurdo Dry Valleys beginning c.1980.
McKay Valley
The central valley of three largely ice-free valleys that trend east from Midnight Plateau in the Darwin Mountains. Named after Christopher P. McKay, physicist, NASA Ames Research Center, Moffett Field, CA, who carried out investigations in McMurdo Dry Valleys (micrometeorology, thickness of ice in frozen lakes, stability of ground ice) in 15 austral summers beginning c.1980.
Wellman Valley
Southern features
Prebble Icefalls
Polarmail Ledge
A relatively flat wedge-shaped platform that rises above Communication Heights in the south part of Midnight Plateau. At 2000 m high, the feature is similar in elevation and aspect to Skilton Ledge, 1 nmi to the east. Named in association with Richard Chapman Johnson of Nazareth, PA, radio operator involved for 16 years (1985-2001) in coordinating MARSgrams and Polarmail which have enabled personnel in Antarctica to communicate with home.
Communication Heights
A group of highly eroded ice-free elevations to the south of Midnight Plateau. The feature rises to about 1800 m high between Conant Valley and Grant Valley. So named because features in the area are named for communication workers.
Skilton Ledge
A relatively flat rectangular rock platform at the southeast margin of Midnight Plateau, Darwin Mountains. The upper surface 2070 m high is ice covered but a rock cliff forms the south end. Named after Larry Skilton, Connecticut ham radio operator who made phone patches in the United States to complete radio communications from United States Antarctic Project (USAP) science stations including Palmer, McMurdo, Byrd surface station, and particularly South Pole. He worked a regular nightly schedule for 11 years (1990-2001) and arranged the completion of several thousand calls.
References
Sources
- {{citation|url=https://pubs.usgs.gov/fedgov/70039167/report.pdf |accessdate=2023-12-03 |edition=2 |editor-last=Alberts |title=Geographic Names of the Antarctic |editor-first=Fred G.
- {{citation |url=https://commons.wikimedia.org/wiki/File:C79197s1_Ant.Map_Carlyon_Glacier.jpg |accessdate=2024-03-12
- {{cite gnis2 |type=antarid |id=118178
- {{cite gnis2 |type=antarid |id=18174
- {{cite gnis2 |type=antarid |id=118175
- {{cite gnis2 |type=antarid |id=118176
- {{cite gnis2 |type=antarid |id=118181
- {{cite gnis2 |type=antarid |id=118182
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