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Bass Rock Lighthouse
Bass Rock Gannets Lighthouse.jpg
Bass Rock Lighthouse
Bass Rock Lighthouse is located in Scotland
Bass Rock Lighthouse
Bass Rock Lighthouse
Location in Scotland
Location Bass Rock
Firth of Forth
Coordinates 56°04′33.89″N 2°38′26.41″W / 56.0760806°N 2.6406694°W / 56.0760806; -2.6406694
Year first constructed 1902
Automated 1988
Construction stone tower
Tower shape cylindrical tower with balcony and lantern attached to 1-storey keeper's house
Markings / pattern white tower, black lantern
Height 20 metres (66 ft)
Focal height 46 metres (151 ft)
Range 10 nautical miles (19 km; 12 mi)
Characteristic Fl (3) W 20 s.
Admiralty number A2864
NGA number 2344
ARLHS number SCO-018

The Bass Rock Lighthouse on Bass Rock is a 20-metre (66 ft) lighthouse, built in 1902 by David Stevenson, who demolished the 13th-century keep, or governor's house, and some other buildings within the castle for the stone. The commissioners of the Northern Lighthouse Board decided that a lighthouse should be erected on the Bass Rock in July 1897 along with another light at Barns Ness near Dunbar. The cost of constructing the Bass Rock light was £8,087, a light first being shone from the rock on the evening of 1 November 1902. It has been unmanned since 1988 and is remotely monitored from the board's headquarters in Edinburgh. Until the automation the lighthouse was lit by incandescent gas obtained from vaporised paraffin oil converted into a bunsen gas for heating a mantle. Since that time a new biform ML300 synchronised bifilament 20-watt electric lamp has been used.

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