found: Great Britain. Ordnance Survey. Avon, c1973.
found: Municipal yrbk, 1982:p. 667 (Avon)
found: BL hdg(Avon (England))
found: Foreign names information bulletin, July 31, 2001(former name: Avon--ADM1, 51°26ʹN 2°30ʹW (UK01); new name: delete)
found: GeoNames, algorithmically matched, 2009(civil; 51°26ʹ00ʺN 002°30ʹ00ʺW)
found: Wikipedia, viewed 1 August 2023(Avon (county); a non-metropolitan and ceremonial county in the west of England that existed between 1 April 1974 and 1996; the county was named after the River Avon, which flows through the area; it was formed from the county boroughs of Bristol and Bath, together with parts of the administrative counties of Gloucestershire and Somerset; in 1996, the county was abolished and the area split between four new unitary authorities: Bath and North East Somerset, Bristol, North Somerset and South Gloucestershire)
