Name: Underground reservoir topographic map, elevation, terrain.
Location: 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)
Average elevation: 103 m
Minimum elevation: 56 m
Maximum elevation: 137 m