found: Work cat.: Nelson, B. The Bass and its seabirds, 2000.
found: Barth. gaz. of places in Brit., 1986(Bass Rock, Lothian, small island of basalt rock in Firth of Forth, 2km N of Tantallon Castle. Height 350 ft. or 107 metres. Haunt of sea birds, esp. gannet. Lighthouse)
found: Collins encyc. of Scotland, 1994(Bass Rock, East Lothian. Situated in the Firth of Forth 3m north-east of North Berwick, this prominent island ... is a volcanic plug dating back to early Carboniferous times. Now a wildlife sanctuary)
found: GeoNames [algorithmically matched]unknown; 56°05ʹ00ʺN 002°38ʹ00ʺW