A371 road A371 road The A371 is a primary road in England running from Wincanton in Somerset, to Weston-super-Mare in North Somerset. The A371 starts at the A303, then passes Castle Cary, Ansford, Cannard's Grave (where it briefly joins the A37), Shepton Mallet, Croscombe, Wells, Westbury-sub-Mendip, Rodney Stoke, Draycott, Cheddar, Axbridge (where it briefly joins the A38), Winscombe, Banwell and Locking before finishing at the A370. En route the A371 passes through the Mendip Hills and near to some major tourist destinations such as the Bath and West showground, Wells Cathedral, Wookey Hole Caves, Cheddar Gorge and the Helicopter Museum and Junction
Wookey Hole Caves as an inlier at the centre. Wookey Hole is a solutional cave mainly formed in the limestone by chemical weathering whereby naturally acidic groundwater dissolves the carbonate rocks, but it is unique in that the first part of the cave is formed in Triassic Dolomitic Conglomerate, a well-cemented fossil limestone scree representing the infill of a Triassic valley. The cave was formed under phreatic conditions i.e. below the local water table, but lowering base levels to which the subterranean drainage was flowing resulted in some passages being abandoned by the river, and there is evidence of a number of abandoned