SVCC nl.v4(6), pp.5-7, 'April 1966.....could not be explored without gear when found...could not be refound in thick mist...posthumously named Ogof Waun-rydd.'...
SVCC nl.v6(5), p.4, 'May 1968...dug out rift to 20 ft of constricted passage'...
SVCC Jnl.3, p.2, 'April 1966...Yeovil contingency of the club spent some time at the head of Dyffryn Crawnon and uncovered a new cave, Ogof Waun-Rydd, which they subsequently lost.'
SVCC nl.v11(5), pp.5,10 'unusual in that it is a sink in Lr Limestone Shale'...