Some way below site 4769 in the boulder slope there is an outward draughting entrance with a 1m downward slope to a constriction. Beyond this is an enlargement that can be seen to continue for another 2 metres with stones rattling down for several metres [Site 18a; Phil Parker]

References: anon., 2019c (Whit logbook)
Entrance pictures :
Underground picture :
Video :
Detailed survey :
Line Survey :
On area survey :
Survex file :