Treknow is mentioned as a manor (under the name of 'Tretdeno') in
Domesday Book (1086). Charles Thomas has suggested that this manor was larger than the manor of
Bossiney within which were Trevena and Tintagel Castle and its southern boundary was the Trebarwith river.
Slate was quarried here from about 1305 to shortly before the
Second World War: many of the quarries were on the coast and later others were opened in the Trebarwith valley to the south. One of the oldest is Lanterdan, recorded in 1464: Bagalow Quarry near Hole Beach was an enterprise of Edgar Jeffray (early 19th century). A small
copper mine also operated in the latter years of the 18th century. The acidic local soil was manured with beach sand from nearby
Trebarwith Strand: the trade in sand led to road improvements in the early 19th century (the Trebarwith Strand to
Condolden "Sanding Road"). Some buildings in the village display a marked
Arts and Crafts influence, probably as a result of the work of architect
Detmar Blow who is known to have worked on the
Old Post Office in Tintagel for four years from 1896. Treknow has a village hall and one small hotel. The former small Chapel of the Holy Family (Church of England, built in 1929) has been redeveloped for private use. ==Footnotes==