Near Pendeen, Cornwall, England
The Chûn Castle is an Iron Age hillfort on the summit of Chûn Downs holding a stronghold with secure views of the north and northwest, onwards to the Atlantic Coast and south towards Mounts Bay. it is roughly 84 meters in diameter with stone walls up to 2.7 meters high and is formed of two concentric rings of granite. There are stone gateposts flanking the entrance. To the west is a chocked well with steps descending down into the water. Pottery found on site suggests the main period of operation was from 3rd century BCE until 1st century CE, with possible re-occupation in 5th-6th century CE. Other evidence shows it was built around 2500 years ago. The fort is circular with two very impressive stone walls and an external ditch. In the interior of the circle fortifications are the remains of several stone walled round houses, of course in ruins, by later activity. One of these is an oval shaped roundhouse that is believed to be post-Roman occupation. The only entrance is a stone-lined passage through the large inner ramparat on the west side with an offset opening through the outer rampart, which is believed to have held a defensive function. A furnace was discovered on the northern edge containing tin and iron indicating that mineral processing was carried out here in the Iron Age. The entrance was set in line with the inner one and the entranceway aligned 250 meters towards the Neolithic chamber tomb known as Chun Quoit which was present long before the stronghold was created. Nearby to the east is the Romano-British courtyard house village of Bosullow Trehyllys which may have been contemporary with the fort. Chun Castle was probably utilized to protect the mining resources and the prehistoric trackway known as Old St. Ives Road.
is a neolithic standing structure which also serves as a bronze age burial mound. The dolmen burial chamber stands on bleak atmospheric moorland slopes about a mile from the sea by Great Bosullow. It consists of a huge capstone (3.3 x 3 meters) with a cupmark standing at about 2 meters height and supported by four standing stones to create a closed chamber. The only access to the interior of the grave is through a hole in the lower right side of the South by southeastern base slab. This monument was probably covered by an earth mound.