It is particularly well exposed throughout the region between East Grinstead, West Sussex, and Tunbridge Wells, Kent, at localities such as; Stone Farm south of East Grinstead; Chiddinglye Rocks near West Hoathly; Toad Rock, Bull’s Hollow and Happy Valley west of Tunbridge Wells; and Harrisons Rocks, Bowles Rocks and High Rocks near Crowborough.
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These are the closest rock climbing crags to London and as a result are the most heavily used in the country.
Wells Fargo | H. G. Wells | George Sand | Junior Wells | Indian Wells | sand | Sadler's Wells | Mary Wells | Bishop of Bath and Wells | formation | Wells, Somerset | Wells Fargo Center | Spencer Wells | Sadler's Wells Theatre | Wells | Kitty Wells | Jonathan Wells | Wells Fargo Center (Philadelphia) | Wells Cathedral | Jonathan Wells (intelligent design advocate) | John Wells | Henry Wells | David Wells | Command (military formation) | Sand River | Frank Wells | Elliot Formation | Zeb Wells | Wells River, Vermont | Three Bridges to Tunbridge Wells Central Line |
The Hastings Beds are divided into three formations: Tunbridge Wells Sand Formation 130–400 ft; Wadhurst Clay Formation 100–230 ft, shales with bands of sandstone and iron ore; and the Ashdown Formation 160–700 ft; sandstones.
The holotype, BMNH R2559 (incorrectly given by Owen as BMNH R2556), was found near Cuckfield in layers of the Tunbridge Wells Sand Formation dating from the late Valanginian.