References
(1974), Berton Pingles Pipe Vein., DCA N/L No.21., , Derbyshire Caving Association
(1978), , DCA N/L No.37., , Derbyshire Caving Association
(2000), , Descent No. 155., p.8., Wild Places Publishing
(2010), , Caves of the Peak District, p. 51, DCA
(2022), The Flooded Level, CDG Newsletter No 224, Page 11., Cave Diving Group
(2023), The Flooded Level, CDG Newsletter 226, Page 4., Cave Diving Group