Calder's Geo

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Calders Geo Calder's Geo - geograph.org.uk - 1518181.jpg
Calders Geo

Calders Geo is an inlet in the western cliffs of Esha Ness in Northmavine on the Mainland, Shetland, Scotland. A cave on the north side of the geo has been measured at more than one and a half times the size of "The Frozen Deep", a chamber in Reservoir Hole under Cheddar Gorge in Somerset, potentially making it the largest natural chamber in Britain. [1]

Calders Geo with cave visible Calders geo.jpg
Calders Geo with cave visible

Geologist Jonathan Swale used a laser range-finder to measure the interior of the cave, which is only accessible during calm seas. He claims that the structure is over 20 metres (66 ft) tall and has a floor area of around 5,600 square metres (60,000 sq ft). [2]

Esha Ness Lighthouse adjacent to the north of the geo was designed by David Alan Stevenson and commissioned in 1929. [3]

References

  1. "Esha Ness sea cave is 'largest in Britain'". BBC News. Retrieved 28 August 2014.
  2. " 'Biggest cave' is Calders Geo in Shetland at Esha Ness". BBC News. Retrieved 28 August 2014.
  3. "Eshaness". Northern Lighthouse Board. Retrieved 28 August 2014.

Registry in the Scottish Cave and Mine Database

60°29′27″N1°37′18″W / 60.4907°N 1.6218°W / 60.4907; -1.6218