|Shropshire Caving & Mining Club - Yew Tree Level Exploration / D0021977
13th February 2010, Kelvin Lake - I.A.Recordings
I.A.Recordings, P.O.Box 476, Telford, Shropshire
The wooden dam at 36.2m
Dam made of planks held in place by vertical timbers, with a 1.1m thick bank of clay in-between the two faces.
Compass direction: 160o
Camera position: 33m from datum at entrance.