|Sources||Calstrome 1566 OPS, 699
Kowisstroim c. 1591 Pont map 3
Kowil-stron 1654 Blaeu map Northern Scotland
Kyle Stroam 1820 Thomson
Kyle G, the narrows with a straumr. Tideway – Gray p. 217
G. and N. Kyle, caolas, strome; N. straume, current, tide: MacKay
This is most likely reflects caolas rather than caol, given the proximity to Kylesku which is more certainly caolas.