The Little Avon River is a small river partly in southern Gloucestershire and partly in South Gloucestershire. For much of its length it forms the boundary between the county of Gloucestershire and the unitary authority of South Gloucestershire. It rises to the east of Wickwar, near Horton, passes near Charfield, Stone and Berkeley, and enters the River Severn via Berkeley Pill. It was formerly navigable up to moorings at Berkeley, but a flood-prevention scheme, built in the 1960s, now prevents navigation more than a few hundred metres upstream.
Geology
The Little Avon River rises from a point upstream to the east of Wickwar in Gloucestershire, flowing north-west for , near Charfield, Stone and Berkeley, before finally joining the River Severn. The river runs through sandstone and clay, while the source water has been affected by the limestone from where it rises. The river starts as a steep course, with a natural riffle-pool sequence, before flattening out at Stone, where the river has been modified for use for irrigation. By the time the river reaches Berkeley, it is sheltered from the tide using tidal gates.
Its tributaries include Ozleworth Brook, Dyers Brook through Wotton-under-Edge, Doverte Brook and Kilcott Brook.
Ecology
Rare species of conservation interest including white-clawed crayfish, water voles, bullheads and eels are known to live in the catchment.
References
External links
- Gloucestershire Wildlife Trust
- Natural England (SSSI information)