Appin, one of the five sections of Dull parish, Perth shire, comprehends the Strath of Appin, down which the Keltney Burn flows from the skirts of Schichallion 6 miles south-eastward to the Tay, at a point 2 miles NE of Kenmore. Thence it is prolonged down the strath of the Tay, past Aberfeldy, to near Grandtully Castle; and contains Dull church, and many fine artificial features. It is one of the most picturesque tracts in the Perthshire Highlands.

(F.H. Groome, Ordnance Gazetteer of Scotland (1882-4); © 2004 Gazetteer for Scotland)