title: Tvarditsa Rocks
text: # Tvarditsa Rocks
  
  Tvarditsa Rocks (Bulgarian: скали Твърдица, Bulgarian: ‘Skali Tvarditsa’ ska-'li tv&r-'di-tsa) is a group of rocks off the north coast of Greenwich Island in the South Shetland Islands, Antarctica situated 1.9 km (1.2 mi) northeast of Ongley Island, 1.3 km (0.81 mi) southwest of Stoker Island and 2.6 km (1.6 mi) west of Sierra Island.
  
  The rocks are named after the town of Tvarditsa in southeastern Bulgaria.
  
  ## Location
  
  Tvarditsa Rocks are located at 62°24′39″S 59°52′06″W﻿ / ﻿62.41083°S 59.86833°W﻿ / -62.41083; -59.86833 (Bulgarian mapping in 2009).
  
  