The Triplets (Robert Island)
The Triplets is an ice-free three-pointed hill rising to 160 m (520 ft) at the southwest extremity of Alfatar Peninsula, Robert Island in the South Shetland Islands, Antarctica and surmounting Coppermine Cove to the northwest, Mitchell Cove to the southeast, and English Strait to the west and south. Aconcagua Point 62°23′32.8″S 59°41′08.8″W / 62.392444°S 59.685778°W is formed by an offshoot of the hill.
The Triplets were charted and descriptively named by Discovery Investigations personnel in 1935. Aconcagua Point was named by the 1948-49 Chilean Antarctic Expedition after the province of Aconcagua, Chile.