Search Natural Areas Foreword Natural Areas & Their Role Natural Area Boundaries Marine Natural Areas Humberhead Levels Introduction Key nature conservation features of National Significance Fen, marsh and swamp Lowland heathland Lowland meadows Lowland raised bogs Purple moor-grass and rush pastures Key nature conservation features of Local Significance Earth heritage Lowland dry acid grassland Rivers and streams Standing open water and canals

Humberhead Levels   Habitat: Rivers and streams (of local significance)   Rivers and streams from bank top to bank top, including the open water area, fringing vegetation and exposed sediments.   As a low-lying, poorly drained region, the Humberhead Levels once had abundant pools, ponds, small watercourses and rivers. Over the centuries the water levels have been lowered, and the rivers contained within banks; some have been given new straightened courses, such as the River Don The rivers of the Humberhead Levels Natural Area (Derwent, Ouse, Aire, Went, Don, Tourne, Idle and Trent) drain one-fifth of England, through the Humber and provide dominant feature in the landscape. Their present day drainage pattern is important for ourunderstanding of fluvial geomorphology.   Copyright    Privacy    Freedom of information    Directgov