This small disused quarry is described by Natural England as short rabbit-grazed grassland which supports one of only two British colonies of the endangered Small Alison flowering plants. Herbs include the uncommon mossy stonecrop.[4]
As of June 2017, the site is covered with dense woodland, scrub and tall herbs, and there is little or no rabbit-grazed grassland.
^"Crag Pit, Sutton citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived from the original(PDF) on 4 May 2015. Retrieved 25 June 2017.