Sidcot Swallet | |
---|---|
Location | Burrington Combe, Somerset, England |
OS grid | ST47545828 |
Coordinates | 51°19′17″N2°45′15″W / 51.32128°N 2.75405°W Coordinates: 51°19′17″N2°45′15″W / 51.32128°N 2.75405°W |
Depth | 28 metres (92 ft) |
Length | 206 metres (676 ft) |
Elevation | 149 metres (489 ft) |
Geology | Limestone |
Entrances | 1 |
Difficulty | Easy |
Hazards | None |
Access | Free |
Registry | Mendip Cave Registry [1] |
Sidcot Swallet is a cave near Burrington Combe, in the Carboniferous Limestone of the Mendip Hills, in Somerset, England.
It was named after the Sidcot School Speleological Society who explored it in 1925. [2]
A swallet, also known as a sinkhole, sink, shakehole, swallow hole or doline, is a natural depression or hole in the surface topography caused by the removal of soil or bedrock, often both, by water flowing beneath.
After Goatchurch Cavern, Sidcot Swallet is probably the most popular cave on Mendip for novice parties. What it lacks in length or depth is adequately compensated for by its sporty squeezes and narrow crawls. Despite its popularity, many calcite formations still remain intact in the farthest reaches of the cave. [3]
Wookey Hole Caves are a series of limestone caverns, a show cave and tourist attraction in the village of Wookey Hole on the southern edge of the Mendip Hills near Wells in Somerset, England. The River Axe flows through the cave. It is a Site of Special Scientific Interest (SSSI) for both biological and geological reasons. Wookey Hole cave is a "solutional cave", one that is formed by a process of weathering in which the natural acid in groundwater dissolves the rocks. Some water originates as rain that flows into streams on impervious rocks on the plateau before sinking at the limestone boundary into cave systems such as Swildon's Hole, Eastwater Cavern and St Cuthbert's Swallet; the rest is rain that percolates directly through the limestone. The temperature in the caves is a constant 11 °C (52 °F).
The River Axe is a river in South West England. The river is formed by water entering swallets in the limestone and rises from the ground at Wookey Hole Caves in the Mendip Hills in Somerset, and runs through a V-shaped valley. The geology of the area is limestone and the water reaches Wookey Hole in a series of underground channels that have eroded through the soluble limestone. The river mouth is in Weston Bay on the Bristol Channel.
Burrington Combe is a Carboniferous Limestone gorge near the village of Burrington, on the north side of the Mendip Hills Area of Outstanding Natural Beauty, in North Somerset, England.
Priddy is a village in Somerset, England in the Mendip Hills, close to East Harptree and 4 miles (6 km) north-west of Wells. It is in the local government district of Mendip.
Brimble Pit and Cross Swallet Basins is a 154.3 hectare geological Site of Special Scientific Interest between Wookey Hole and Priddy in the Mendip Hills, Somerset, notified in 1987.
Priddy Caves is an Area: 67.6 hectare geological Site of Special Scientific Interest at Priddy in the Mendip Hills, Somerset, notified in 1965.
Priddy Pools is a 52.7-hectare (130-acre) geological Site of Special Scientific Interest at Priddy in the Mendip Hills, Somerset, notified in 1972.
The Cheddar Complex is a 441.3 hectare biological Site of Special Scientific Interest near Cheddar around the Cheddar Gorge and north east to Charterhouse in the Mendip Hills, Somerset, England, notified in 1952.
Thrupe Lane Swallet is a 0.5 hectares geological Site of Special Scientific Interest in Somerset, notified in 1992. It is also a Geological Conservation Review site.
Charterhouse, also known as Charterhouse-on-Mendip, is a hamlet in the Mendip Hills Area of Outstanding Natural Beauty (AONB) in the English county of Somerset. The area between Charterhouse and Cheddar Gorge including Velvet Bottom and Ubley Warren is covered by the Cheddar Complex Site of Special Scientific Interest.
The caves of the Mendip Hills are formed by the particular geology of the Mendip Hills: large areas of limestone worn away by water makes it a national centre for caving. The hills conceal the largest underground river system in Britain.
St Cuthbert's Swallet is the second longest, and most complex, cave on the Mendip Hills, in Somerset, England. It forms a major part of the Priddy Caves system and water entering this swallet re-emerges at Wookey Hole. St Cuthbert's Swallet is part of, and lies underneath, the Priddy Pools Site of Special Scientific Interest.
The Longwood Swallet is a cave near Charterhouse, in the Carboniferous Limestone of the Mendip Hills, in Somerset, England. The cave is part of the Cheddar Complex SSSI and is connected to August Hole.
Stoke Lane Slocker is a cave near Stoke St Michael, in the Carboniferous Limestone of the Mendip Hills, in the English county of Somerset.
Upper Flood Swallet which was originally known as Blackmoor Flood Swallet, is an exceptionally well-decorated cave near Charterhouse, in the carboniferous limestone of the Mendip Hills, in Somerset, England. The cave is part of the Cheddar Complex SSSI.
Rod's Pot is a limestone cave above Burrington Combe in the Mendip Hills, in Somerset, England.
Attborough Swallet is a cave in Chewton Mendip in Somerset, England.
Hunter's Hole is a cave in the Mendip Hills in Somerset, England. It is behind a pub, known as the Hunters Lodge Inn just outside Priddy where visitors can park. It is accessed via a permanent ladder, about 100m behind the pub in a small dip between some trees.
Charterhouse Cave, on the Mendip Hills in Somerset, is the deepest cave in southern England.
Bos Swallet is a karst cave in Burrington Combe on the Mendip Hills in Somerset, England.