User:DAHMorris/Manor Farm Swallet

Manor Farm Swallet is a cave located in Charterhouse on the Mendip hills. It is 1060m long and at 156m is the third deepest cave on the mendips. It consists primarily of a steeply sloping stream passage with a large passage, NHASA Gallery at the bottom.

History
The first attempts to enter the cave involved sinking a series of shafts at the point of stream engulfment. From 1947-1966 repeated attempts to enter the cave by this method were undertaken but all of the shafts collapsed before the cave could be entered. In 1966 members of the University of Bristol Speleological Society began to blast a shaft through bedrock some 10m from the sink in an attempt to gain a stable entrance. Finally of the 5th September 1973 diggers from NHASA broke through into the cave after several years of digging at the bottom of the UBSS shaft. Most of the currently known cave was explored that year although sporadic digging has continued at the bottom of the cave revealing several very minor extensions.