Arbory Hill, a conical hill in the SW angle of Lamington parish, S Lanarkshire, on the right bank of the Clyde, 1 mile below the month of Glengonnar Water. It rises to a height of 1406 feet above sea-level, and is crowned by extensive rude relics of an ancient Caledonian work. First are a wide fosse and a rampart; next, about 18 feet farther up, are another fosse and a large earthwork; next, about 48 feet still farther up, is a circle of stones upwards of 20 feet thick and about 4 high; and, finally, is an enclosed or summit space about 132 feet in diameter.

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