Ebbor Gorge
| Site of Special Scientific Interest | |
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 Location within Somerset
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| Area of Search | Somerset |
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| Grid reference | ST525485 |
| Coordinates | 51°14′02″N 2°40′55″W / 51.234°N 2.682°WCoordinates: 51°14′02″N 2°40′55″W / 51.234°N 2.682°W |
| Interest | Biological |
| Area | 156.8 acres (0.635 km2) |
| Notification | 1952 |
| Natural England website | |
Ebbor Gorge is a limestone gorge in Somerset, England, designated and notified in 1952 as a 63.5-hectare (157-acre) biological Site of Special Scientific Interest in the Mendip Hills. It was donated to the National Trust in 1967 and is now managed by Natural England as a National Nature Reserve.
The gorge was cut mostly into the Clifton Down Limestone, part of the Lower Carboniferous Pembroke Group], by water. The site was occupied by humans in the Neolithic Era and their tools and flint arrow heads have been discovered, along with pottery from the Bronze Age. There are also fossils of small mammals from the Late Devensian. The nature reserve provides a habitat for a variety of flora and fauna, including flowers, butterflies and bats.
Ebbor Gorge lies on the southwest-facing slope of the Mendip Hills and consists of a steep-sided ravine cut into 350-million-year-old Carboniferous Limestone of the Dinantian. The gorge was cut into Clifton Down Limestone by meltwater in the Epoch. The lowest part of the gorge is formed in the Namurian Quartzitic Sandstone Group and the South Wales Lower Coal Measures, over which younger limestones have been thrust to the north-east, as demonstrated by the BGS maps (1:50,000 sheet 280, Wells). An example of the rare mineral mendipite was found at the head of the gorge.
A stream issuing to the west of the site runs down the tributary valley of Hope Wood before joining the main gorge. The original watercourse which may have cut the gorge into the limestone became diverted underground and now emerges at Wookey Hole Caves to form the River Axe.
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Wikipedia