Prosechen Island (, ) is the northern of two rocky islands in Smyadovo Cove on the west coast of Rugged Island in the South Shetland Islands. The area was visited by early 19th century sealers. It is named after the settlement of Prosechen in Northeastern Bulgaria.
First described by early 19th century sealers, the feature is long in eastâÂÂwest direction and wide. The island is named after the settlement of Prosechen in Northeastern Bulgaria.
Prosechen Island is located at , which is south of Cape Sheffield and north by east of Ugain Point. It is separated from Rugged Island to the north and Toledo Island to the south by and wide passages respectively. Spanish mapping took place in 1992 and Bulgarian mapping in 2009.