Nome: Mapa topográfico Underground reservoir, altitude, relevo.
Local: Underground reservoir, Glassenbury Road, Flishinghurst, Cranbrook & Sissinghurst, Hartley, Tunbridge Wells, Kent, South East England, England, TN17 2QE, United Kingdom (51.08721 0.50915 51.08830 0.51076)
Altitude média: 103 m
Altitude mínima: 56 m
Altitude máxima: 137 m