CROCKERN-TOR, a rugged eminence in Lidford parish, Devon; in the north-west of Dartmoor, 7½ miles NNE of Tavistock. The ancient stannary courts were held here, on rock benches in the open air, with proroguement to one of the stannary towns; and one of them was held here so late as 1749. Three other tors, called the Little Longaford, the Great Longaford, and the Whiten, rise above Crockern-Tor; and all command imposing views.

(John Marius Wilson, Imperial Gazetteer of England and Wales (1870-72))