Osogovo Bay, named after the Osogovo region in western Bulgaria, is bounded by the south coast of Rugged Island, by Astor Island, and by the west coast of the Byers Peninsula south of Laager Point, Livingston Island in the South Shetland Islands, Antarctica.
Svishtov Cove is a 2.19 km wide cove indenting for 1.48 km the northwest extremity of Ray Promontory on Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. it is entered southwest of Essex Point and northeast of Start Point.
Ugain Point is the point on the west coast of Rugged Island in the South Shetland Islands, Antarctica separating Smyadovo Cove to the north and Bogomil Cove to the south. Situated 1.76 km north-northwest of Benson Point, 970 m north of Kokalyane Point and 1.55 km south of Cape Sheffield.
Radko Knoll is a rocky hill rising to 102 m on the north coast of Smyadovo Cove in the northwest of Rugged Island in the South Shetland Islands, Antarctica. It is situated 830 m south-southeast of Cape Sheffield and 860 m north-northeast of Ugain Point.
Bogomil Cove is a 970 m wide cove indenting for 770 m the west coast of Rugged Island off the west coast of Byers Peninsula of Livingston Island in the South Shetland Islands, Antarctica. It is entered north of Kokalyane Point and south of Ugain Point.
Smyadovo Cove is a 900-meter wide cove indenting for 850 m the west coast of Rugged Island off the west coast of Byers Peninsula of Livingston Island in the South Shetland Islands, Antarctica. Entered north of Ugain Point and south of the southwest extremity of the small peninsula forming Cape Sheffield. Part of the cove's interior and entrance is occupied by Toledo Island and Prosechen Island.
Nishava Cove is a 1.33 km wide cove indenting for 1 km the north coast of Rugged Island off the west coast of Byers Peninsula of Livingston Island in the South Shetland Islands, Antarctica between Chiprovtsi Islets and Chiprovtsi Point on the east, and Cape Sheffield on the west.
Bakshev Ridge is a rugged rocky ridge on Rugged Island off the west coast of Byers Peninsula of Livingston Island in the South Shetland Islands, Antarctica extending 700 m in southeast-northwest direction, with a highest point of elevation 239 m situated 660 m east of San Stefano Peak, 1.25 km west of Vund Point, and 1.1 km northwest of Radev Point.
San Stefano Peak is a rocky peak rising to 256 m, the summit of Rugged Island off the west coast of Byers Peninsula of Livingston Island in the South Shetland Islands, Antarctica. Situated in the central part of the island, 3.48 km northeast of Benson Point, 4.17 km southeast of Cape Sheffield, 830 m south of Cherven Peak, 1.91 km west of Vund Point, and 1.58 km northwest of Radev Point.
Chiprovtsi Point is a point projecting 400 m (440 yd) northwestwards from the north coast of Rugged Island off the west coast of Byers Peninsula of Livingston Island in the South Shetland Islands, Antarctica, and forming the east side of the entrance to Nishava Cove. It is extended further 400 m (440 yd) northwestwards by the group of Chiprovtsi Islets, which are centred at 62°36′52″S61°16′09″W and named in association with the point.
Simitli Point is a point on the north coast of Rugged Island off the west coast of Byers Peninsula of Livingston Island in the South Shetland Islands, Antarctica forming the east side of the entrance to Timok Cove. Situated 400 m west-southwest of Ivan Vladislav Point, and 2.91 km east-southeast of Cape Sheffield, and 3.61 km south-southwest of Start Point, Livingston Island.
Ivan Vladislav Point is a point on the north coast of Rugged Island off the west coast of Byers Peninsula of Livingston Island in the South Shetland Islands, Antarctica formed by an offshoot of Cherven Peak. Situated 1.63 km west-northwest of Herring Point, 400 m east-northeast of Simitli Point, and 3.27 km east-southeast of Cape Sheffield.
Herring Point is a point on the north coast of Rugged Island off the west coast of Byers Peninsula of Livingston Island in the South Shetland Islands, Antarctica forming the east side of the entrance to Hersilia Cove.
Ograzhden Cove is the 680 m wide cove indenting for 550 m the northwest coast of Ray Promontory, part of Svishtov Cove in Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. The cove is entered south of Essex Point and north of Kardzhali Point.
Kukuzel Cove is the 1.18 km wide cove indenting for 620 m the north coast of Byers Peninsula between Lair Point and Villard Point on Livingston Island in the South Shetland Islands, Antarctica. The area was visited by early 19th century sealers.
Sevar Point is a point on the south coast of Byers Peninsula on Livingston Island in the South Shetland Islands, Antarctica situated 1.9 km east-southeast of Devils Point, 2.71 km west of Nikopol Point, and 2.97 km northeast of Long Rock in Morton Strait. It is surmounted by Wasp Hill on the north-northeast, Sealer Hill on the east-northeast, and forms the east side of the entrance to Raskuporis Cove.
Voyteh Point is the point forming the east side of the entrance to Richards Cove on the north coast of Ray Promontory in the northwestern part of Byers Peninsula on Livingston Island in the South Shetland Islands, Antarctica. It is surmounted by Sàbat Hill. The area was visited by early 19th century sealers.
Richards Cove is the 450 m wide cove indenting for 550 m the north coast of Ray Promontory, Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica, entered east of Aglen Point and west of Voyteh Point. The area was visited by early 19th century sealers.
Toledo Island is the southern of two rocky islands in Smyadovo Cove on the west coast of Rugged Island in the South Shetland Islands. The feature is 320 m long in east-west direction and 110 m wide. It is separated from Rugged Island to the southeast and Prosechen Island to the north by 40 m and 60 m wide passages respectively. The area was visited by early 19th century sealers.
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 feature is 500 m long in east-west direction and 140 m wide. It is separated from Rugged Island to the north and Toledo Island to the south by 70 m and 60 m wide passages respectively. The area was visited by early 19th century sealers.
