Brimble Pit and Cross Swallet Basins
Brimble Pit and Cross Swallet Basins (grid reference ST512505) is a 154.3 hectare (381.3 acre) geological Site of Special Scientific Interest between Wookey Hole and Priddy in the Mendip Hills, Somerset, notified in 1987.
| Site of Special Scientific Interest | |
  Location within Somerset | |
| Location | Somerset |
|---|---|
| Grid reference | ST512505 |
| Coordinates | 51.25157°N 2.70061°W |
| Interest | Geological |
| Area | 154.3 hectares (1.543 km2; 0.596 sq mi) |
| Notification | 1987 |
| Natural England website | |
The site covers the two adjacent karstic basins draining into Brimble Pit and Cross Swallet. These are the two best defined of the belt of large shallow closed depressions which account for the total Topography along the southern edge of the Mendip Hills. The Brimble Pit depression has a large old lake sediment floor now pitted with sinkholes, while the Cross Swallet Basin feeds to a single active sinkhole around which are well preserved terraces of both rock and sediment. Both depressions have marginal cols feeding to overflow channels now permanently dry. The site also contains important Pleistocene/Quaternary mammal remains within sediments infilling former caverns exposed on the north east face of Westbury Quarry.[1]
The swallet was excavated by William Stanton between 1991 & 1992 for spelaeological purposes. However, archaeological material was discovered, leading Stanton to separate the deposits he was removing and examine them for archaeological material,[2] which included 42 sherds of Grooved Ware pottery and a polished greenstone axehead.[3]
The area is included in the Cook's Fields Nature Reserve run by the Somerset Wildlife Trust.[4]
The Site of Special Scientific Interest is divided into units by Natural England. The Church Commissioners own the land on which part of unit 1 is situated[5]
References
- "Brimble Pit and Cross Swallet Basins" (PDF). English Nature. Retrieved 17 July 2006.
- "Upwards at 45 degrees: the use of vertical caves during the Neolithic and Early Bronze Age on Mendip, Somerset". CAPRA. Archived from the original on 27 April 2007. Retrieved 27 January 2007.
- "Brimble Pit and Cross Swallet". Karst Features of Great Britain. Retrieved 18 October 2008.
- "Cook's Fields". Somerset Wildlife Trust. Retrieved 18 October 2008.
- "'God's acres': the land owned by the Church Commissioners". Who Owns England?. 4 November 2019. Retrieved 5 November 2019.