Thil Island is a small rocky

island An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island ...

lying 1 nautical mile (1.9 km) northeast of

Jennings Promontory Jennings Promontory () is a prominent rock promontory on the eastern margin of Amery Ice Shelf between the Branstetter Rocks and Kreitzer Glacier. It was delineated in 1952 by John H. Roscoe from air photos taken by U.S. Navy Operation Highjump ...

in the eastern part of the

Amery Ice Shelf The Amery Ice Shelf () is a broad ice shelf in Antarctica at the head of Prydz Bay between the Lars Christensen Coast and Ingrid Christensen Coast. It is part of Mac. Robertson Land. The name "Cape Amery" was applied to a coastal angle mapped o ...

. Delineated in 1952 by

John H. Roscoe John Hobart Roscoe (March 23, 1919 - February 23, 2007) was an American geographer, intelligence officer and aerospace engineer. He is best known for his work with Operation Highjump and Operation Windmill, for which there was a glacier named ...

from air photos taken by

U.S. Navy Operation Highjump Operation HIGHJUMP, officially titled The United States Navy Antarctic Developments Program, 1946–1947, (also called Task Force 68), was a United States Navy (USN) operation to establish the Antarctic research base Little America IV. The opera ...

, 1946–47. Named by Roscoe for R.B. Thil, air crewman on

Operation Highjump Operation HIGHJUMP, officially titled The United States Navy Antarctic Developments Program, 1946–1947, (also called Task Force 68), was a United States Navy (USN) operation to establish the Antarctic research base Little America IV. The opera ...

photographic flights over this area.

See also