The River Onny is a river in

Shropshire Shropshire (; abbreviated SalopAlso used officially as the name of the county from 1974–1980. The demonym for inhabitants of the county "Salopian" derives from this name.) is a Ceremonial counties of England, ceremonial county in the West M ...

England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...

. It is a major tributary of the River Teme.

Etymology

The river's name derives from Welsh and means the river on which ash trees (Welsh: ''onnau'') grew.

Course

The river has its sources in the Shropshire Hills at White Grit, located in Mid and South-west Shropshire. It has two branches, the East Onny and West Onny, which converge at Eaton, to the east of Lydham. The River Onny then flows in a south-easterly direction, through

Craven Arms Craven Arms is a market town and Civil parishes in England, civil parish in Shropshire, England. It is sited on the A49 road and the Welsh Marches Line, Welsh Marches railway line, which link it north and south to the larger towns of Shrewsbur ...

and Onibury (a village it gives its name to), before it finally has its confluence with the River Teme just upstream of

Ludlow Ludlow ( ) is a market town and civil parish in Shropshire (district), Shropshire, England. It is located south of Shrewsbury and north of Hereford, on the A49 road (Great Britain), A49 road which bypasses the town. The town is near the conf ...

at Bromfield. From White Grit to Bromfield, the river flows over a distance of . The River Teme is itself a tributary of the

River Severn The River Severn (, ), at 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, with an average flow rate of at Apperley, Gloucestershire. It rises in t ...

, converging just south of Worcester city centre. The River Severn then flows south-west meeting the sea at

Bristol Channel The Bristol Channel (, literal translation: "Severn Sea") is a major inlet in the island of Great Britain, separating South Wales (from Pembrokeshire to the Vale of Glamorgan) and South West England (from Devon to North Somerset). It extends ...

Geology

Geologically, the Onny has the type section just west of Craven Arms of the Caradoc series of the

Ordovician The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era, and the second of twelve periods of the Phanerozoic Eon (geology), Eon. The Ordovician spans 41.6 million years f ...

system and there is a

trilobite Trilobites (; meaning "three-lobed entities") are extinction, extinct marine arthropods that form the class (biology), class Trilobita. One of the earliest groups of arthropods to appear in the fossil record, trilobites were among the most succ ...

genus Onnia which was first defined here.

References

Bibliography

* Rivers of Shropshire 1Onny {{England-river-stub