In 1887, John Bartholomew's Gazetteer of the British Isles described Pentland Firth like this:
Pentland Firth, strait, between Caithness and the Orkney Islands, connecting the North Sea with the Atlantic Ocean; is 20 miles long and from 6½ to 8 miles broad; its navigation is rendered difficult and dangerous by the rapidity of the tidal current - from 6 to 12 miles an hour - and by dangerous eddies or whirlpools.
Pentland Firth through time
Pentland Firth is now part of Orkney Islands district. Click here for graphs and data of how Orkney Islands has changed over two centuries. For statistics about Pentland Firth itself, go to Units and Statistics.
GB Historical GIS / University of Portsmouth, History of Pentland Firth, in Orkney Islands and Scotland | Map and description, A Vision of Britain through Time.
URL: https://www.visionofbritain.org.uk/place/26843
Date accessed: 12th May 2024
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