Area: 0.9 hectares.

A new site. Listed in the Geological Conservation Review. 

Description and Reasons for Notification: 

The site covers a single large subsidence doline which is the largest karst feature on the Bryants Puddle heathland. It is formed in Tertiary and Quaternary sands overlying the Chalk, and provides an excellent example of a landscape feature formed by the extensive subsurface solution of the Chalk of southern England.