Black Thumb

Black Thumb (68°25′S 66°53′W) is a mountain, 1,190 metres (3,900 ft) high, with notched and precipitous sides, standing between Romulus Glacier and Bertrand Ice Piedmont on the west coast of Graham Land. It was charted and named by the British Graham Land Expedition under John Rymill, 1934–37.

Further reading
• United States. Defense Mapping Agency. Hydrographic Center, Sailing Directions for Antarctica: Includes Islands South of Latitude 60°, P 203
gollark: What?
gollark: Quaternion good actually.
gollark: Don't worry, we counter any impulse on mirrors by using other lasers on the other side.
gollark: It's mostly software and very fast computers.
gollark: I'll laser-etch them into the moon or something.

References
  •  This article incorporates public domain material from the United States Geological Survey document: "Black Thumb". (content from the Geographic Names Information System)


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