A1 Pit: TL198701
Abbots Ripton: TL235780
Abbots Ripton (Hall Farm): TL242781
Abbotsley: TL230565
Abington Pigots: TL306445
Adams Road Sanctuary (Cambridge): TL436588
Addenbrooke's Site: TL465552
Adventurers Fen - See Wicken Fen (Adventurers Fen)
Ailsworth: TL120990
Ailsworth Heath - See Castor Hanglands
Alconbury: TL188758
Alconbury Airfield: TL210765
Alconbury Weston: TL180770
Aldreth: TL445733
Alwalton: TL135958
Anglesey Abbey: TL534622
Archer's Wood: TL175810
Arrington: TL325505
Ash Wood: TL138662
Ashley: TL698615
Ashton: TF103058
Aversley Wood: TL165820