Strathmore.-- the great valley of Scotland, remarkable for beauty, fertility, and populousness; extends in its widest sense from Ardmore in Dumbartonshire to the North Sea at Stone haven in Kincardineshire, flanked on the one side by the Grampians, and on the other by the Lennox, Ochil, and Sidlaw Hills, but is popularly regarded as comprising only the district NW. of the Sidlaw Hills, and reaching from Methven in Perthshire to the neighbourhood of Brechin in Forfarshire; Strathmore gives the title of earl to the family of Lyon.

(John Bartholomew, Gazetteer of the British Isles (1887))