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The River Axe is a river in South West England. The river is formed by water entering swallets in the limestone and rises from the ground at Wookey Hole Caves in the Mendip Hills in Somerset, and runs through a V-shaped valley. The geology of the area is limestone and the water reaches Wookey Hole in a series of underground channels that have eroded through the soluble limestone. The river mouth is in Weston Bay on the Bristol Channel. The river was navigable from the middle ages until 1915, and used for international trade. == Geography == The River Axe is formed by the water entering the cave systems and flows through the third and first chambers, from which it flows to the resurgence, through two sumps and long, where it leaves the cave and enters the open air. It is the second largest resurgence on Mendip, with an estimated catchment area of , and an average discharge of per second. Some of the water is allogenic in origin i.e. drained off non-limestone rocks, collecting as streams on the surface before sinking at or near the Lower Limestone Shale — Black Rock Limestone boundary, often through swallets such as plantation swallet near St Cuthbert's lead works between the Hunter's Lodge Inn and Priddy Pools. It then passes through major cave systems such as Swildon's Hole, Eastwater Cavern and St Cuthbert's Swallet, around Priddy, but 95% is water that has percolated directly into the limestone. From Wookey Hole village the river flows through a ravine and then west through the village of Wookey. At Wookey the River splits into two channels with the ‘Lower River Axe’ running past to the south of the village west towards Henton and then onto Panborough Moor where it joins a series of rhynes and drains supplying water to the wetland in the area. The Lower River Axe then runs north along the west most edge of Knowle Moor whilst the River Axe continues west through the same moor. The two channels meet again on the boundary between Knowle and Panborough Moors. The river continues northwest past Wedmore Moor and through Oxmoor, Stoke Moor and Monk Moor. The river passes through the settlement of Lower Weare and on to the south of Loxton. From this point until it passes between Uphill Cliff and Brean Down, then reaches the coast at Weston Bay, the river forms the northern boundary of the county. Tributaries of the Axe include three rivers called Yeo: the Cheddar Yeo, the Mark Yeo and the Lox Yeo. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「River Axe (Bristol Channel)」の詳細全文を読む スポンサード リンク
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