Cuan Sound

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File:Cuan Sound - geograph.org.uk - 387061.jpg

Cuan Sound is a narrow channel, {{convert|200|m}} wide, located in Argyll, western Scotland. It separates Seil and Luing and later becomes the Firth of Lorn. It has a very strong current.{{cite book|last=Bartholomew|first=John George|title=The survey gazetteer of the British Isles, topographical, statistical, and commercial: compiled from the 1901 census and the latest official returns|url=https://archive.org/details/surveygazetteero00bartuoft|accessdate=29 October 2011|edition=Public domain|year=1904|publisher=G. Newnes, limited|pages=[https://archive.org/details/surveygazetteero00bartuoft/page/209 209]–}} In Cuan Sound, the north-going stream begins 4.5 hours after high water Oban and sets westward; the south-going stream begins 1.5 hours before high water Oban and sets eastward; the streams attain a rate of 7 knots at springs. This coast from Cuan Sound to Easdale Bay is in many places foul and rocky for 1.5 cables of it. Sgeir na Faoileann, a rock above water, one cable from the shore, and 3.5 cables northward of the entrance to Cuan Sound, is surrounded by foul ground, which extends 1.5 cables south-westward from it.{{cite book|author=Great Britain. Hydrographic Dept|title=West Coast of Scotland Pilot|url=https://books.google.com/books?id=eMFBAAAAIAAJ&pg=PA157|accessdate=29 October 2011|edition=Public domain|year=1911|publisher=Printed for the Hydrographic Department, Admiralty by Taylor, Garnett, Evans, & Co.|pages=157–}} Coirebhreacain and Cuan Sound are seldom attempted except near slack water.{{cite book|author=U.S. Coast and Geodetic Survey|title=Report of the Superintendent ... showing the progress of the work|url=https://books.google.com/books?id=S3HpAAAAMAAJ&pg=PA350|accessdate=29 October 2011|edition=Public domain|year=1907|publisher=Govt. print. off.|pages=350–}}