Chatham Harbour (former name States Bay, Spanish: Puerto de San Joseph, Puerto de San José) is the large bay indenting the central part of Weddell Island in the Falkland Islands. It is entered east of Beacon Point and west of Loop Head. The 3 km wide bay extends 5 km in southeast direction, this part of the feature forming an anchorage named Bald Road, and north of Clay Point turning for 10 km in southwest direction. Chatham Harbour is centred at 51°50′16″S 60°57′32″W.
States Cove (former names States Harbour, Hussey Harbour) is an estuary on the southeast side of Chatham Harbour, centred at 51°50′15″S 60°54′15″W.
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