Doulas or Dulaich, a loch in Lairg parish, S Sutherland, 2¼ miles NE of Lairg village. Lying 480 feet above sea-level, it measures 3 by 1½ furlongs, sends off a rivulet to Loch Shin at Lairg village, and itself receives one, running ¾ mile eastward from Loch Craggie, like which it abounds in very fine trout, running about ½ lb. each.—Ord. Sur., sh. 102,1881.

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