Dartmoor is an upland area in southern Devon, England. The moorland and surrounding land has been protected by National Park status since 1951. Dartmoor National Park covers 954 km2 (368 sq mi).
The River Severn, at 220 miles (354 km) long, is the longest river in Great Britain. It is also the river with the most voluminous flow of water by far in all of England and Wales, discharging an average of 107 m3/s (3,800 cu ft/s) into the Bristol Channel at Apperley, Gloucestershire. It rises in the Cambrian Mountains in mid Wales, at an altitude of 2,001 feet (610 m), on the Plynlimon massif, which lies close to the Ceredigion/Powys border near Llanidloes. The river then flows through Shropshire, Worcestershire and Gloucestershire. The county towns of Shrewsbury, Gloucester and the City of Worcester lie on its course.
The River Dart is a river in Devon, England, that rises high on Dartmoor and flows for 75 kilometres (47 mi) to the sea at Dartmouth.
The River Teign or is a river in the county of Devon, England. It is 31 mi (50 km) long and rises on Dartmoor, becomes an estuary just below Newton Abbot and reaches the English Channel at Teignmouth.
The Walkham is a river whose source is on Dartmoor, Devon, England. It rises in the wide gap between Roos Tor and Great Mis Tor and flows almost due south for approximately 3 miles (4.8 km) leaving the tors and thus National Park behind then south-west for 1 mile (1.6 km) past Woodtown. The river then reaches a village, Horrabridge, with a small compact network of streets mainly on the south or left bank. It receives most of its tributaries which are unnamed headwaters along its south-flowing inception, draining the near side of two series of six tors (peaks) to the west ending in Pew Tor at 320 metres and likewise to the east ending in Leeden Tor at 389 metres. In absolute distance, 2 miles (3.2 km) west of the village and the same south of the small well-preserved town of Tavistock by a footbridge on the West Devon Way the Walkham joins the Tavy which discharges into the Tamar Estuary north of the Plymouth conurbation after a fast descent around wide hillsides, a few miles south.
The Erme is a river in south Devon, England. From its source on Dartmoor it flows in a generally southerly direction past some of the best-preserved archaeological remains on the moor. It leaves the moor at the town of Ivybridge and continues southward, passing the settlements of Ermington, Modbury and Holbeton. Near Holbeton it becomes a ria and empties into the English Channel in Bigbury Bay, between the rivers Yealm and Avon.
Foudry Brook is a small stream in southern England. It rises from a number of springs near the Hampshire village of Baughurst, and flows to the east and then the north, to join the River Kennet to the south of Reading. The upper section is called Silchester Brook, and beyond that, Bishop's Wood Stream. The underlying geology is chalk, covered by a layer of clay, and so it has the characteristics of a clay stream, experiencing rapid increases in level after heavy rain due to run-off from the surrounding land. It passes a number of listed buildings and scheduled monuments, including the site of the Roman town of Calleva Atrebatum or Silchester.
The Prittle Brook is a 7.2 mile watercourse in south Essex, England. A tributary of the River Roach, the brook rises in Thundersley and passes through Hadleigh, Leigh-on-Sea, Westcliff, Prittlewell, Rochford and discharges into the Roach and then into the North Sea via the Roach and Crouch estuaries.
The Carrabassett River, a tributary of the Kennebec River, is located in Franklin County and Somerset County, Maine, in the United States. It rises near Sugarloaf Mountain, east of Rangeley Lake, and runs for 33.8 miles (54.4 km), flowing southeast past Kingfield and joining the Kennebec River in the town of Anson.
Ashburn is a river in the Dartmoor moors in Devon in south-west England, flowing through the Ashburton valley to the River Dart.
The River Bovey rises on the eastern side of Dartmoor in Devon, England, and is the largest tributary to the River Teign. The river has two main source streams, both rising within a mile of each other, either side of the B3212 road between Moretonhampstead and Postbridge, before joining at Jurston.
The West Webburn is a stream on Dartmoor in Devon in south-west England. It rises on the eastern side of the moors flowing off the east side of Hameldown Ridge. Its source is extremely close to the Grimspound Bronze Age settlement, and it was probably the main source of water for the settlement. It flows south, going past Widecombe-in-the-Moor, and joins the East Webburn River at Lizwell Meet in Oakmoor Wood. These combined streams then join the River Dart at Buckland Bridge in Holne Chase.
The East Dart River is one of the two main tributaries of the River Dart in Devon, England.
Wistman's Wood is one of only three remote high-altitude oakwoods on Dartmoor, Devon, England. The other two are Black-a-Tor Copse on the West Okement at SX565892 and Piles Copse on the River Erme at SX644620.
The Walla Brook is the name of four different streams on Dartmoor, England:
The Cherry Brook is a tributary of the West Dart River on Dartmoor, Devon, England.
The River Mardle is a tributary of the River Dart in Devon, England.
The River Sig is a 2.4 mile long river on Dartmoor in the county of Devon, England. It is a tributary to the River Lemon which it meets at Sigford.
Holy Brook is a tributary of the River Dart in Devon, England. It rises on the eastern flank of the 495 m (1,624 ft)-high hill of Snowdon on Dartmoor, at grid reference SX678687. It was once a much longer stream, but its headwaters were long ago captured by the River Mardle, and the physical evidence of this stream capture is clear when viewed from higher up the side of Snowdon.
Holne Ridge, on Dartmoor, includes some of southern Dartmoor's highest land. The ridge to the south west overlooks mires and bogs like Aune Head Mires. To the north east it overlooks the Dart Gorge with its many tors; Sharp Tor, for example. It also includes many notable features including:
