4789: shaft
Coterón las Llanas 30T 451000 4798947 (Datum: ETRS89. Accuracy code: G) Altitude 470m
Length 9m Depth 3m
Area position

  First spotted on an aerial video, this is an open 6m long, 3m deep rift with plenty of vegetation. The base is full of loose boulders and there is a small tube/rift off on the south side.

References: anon., 2018c (summer logbook)
Entrance pictures : August 2018
Underground pictures :
Video : drone flight 2018 (YouTube)
Detailed survey :
Line Survey :
On area survey :
Survex file :