Boeshane Peninsula
The Boeshane Peninsula was the place, in the 51st century where the Time Agent later known as Jack Harkness grew up and lived with his family: his mother, his father and his brother Gray. (TW: Adam). Here, he was nicknamed the "Face of Boe", possibly explaing the real Face of Boe's unusual knowledge of the doctor. (DW: Last of the Time Lords)
The Peninsula, located on one of Earth's colony worlds (TWN: The Twilight Streets), was mostly grassy sand dunes and beaches. The inhabitants lived in a large building cluster at the edge. Most of the inhabitants were killed when the "most horrible creatures imaginable" invaded the Peninsula. Some of the few survivors were Jack Harkness and his mother. (TW: Adam)
Jack's younger brother, Gray is also a survivor but is now dry-frozen in Torchwood 3 for his attempt to torture Jack and harm the other Torchwood members.