Dunbar, Stenton, Tyninghame and Oldhamstocks, defined by the East Lothian-Borders boundary from the Firth of Forth to Heart Law, then north westwards along the watershed to include Weatherly and Halls, but excluding Boonslie, crossing Pressmennan Lake to Little Ruchlaw, then north along the minor road crossing the A1 to the east of East Linton, continuing north to join the B1407 to the east of Preston Mains, north along the minor road past Lawhead Cottages and Birkhill, then east along the forest track to Gaugers Bush and continuing east along a minor road to the Firth of Forth.