The Greenwich Island of the South Shetland Archipelago covers an area of 173,8 square kilometres. The highest summit of the island is the Momchil Peak (625 metres). Other summits are Mt. Plymouth (520 m), Lioyd Hills (335 m), Crutch Peaks (275 m), Lopez Nunatak (275 m), Rouscau Peak (272 m) and the Greaves Peak (240 m).
On the island are located the bases:
Pedro Vicente Maldonado (Ecuador)
Chile 1981, Arturo Prat Station (Chile).
According Michel catalogue it shows Arturo Prat Station.
Chile 1990, Arturo Prat Station (Chile).
The summit behind the station is known as López Nunatak (275 m).
Chile 1987, "40 years Arturo Prat Station" (Chile).
Ecuador 1994, Pedro Vicente Maldonado (Ecuador).
Chile 1997, "50 years Arturo Prat Station" (Chile).