<Table> <Tr> <Td_colspan="2"> River Avon </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> The River Avon by the Royal Shakespeare Theatre in Stratford - upon - Avon </Td> </Tr> <Tr> <Th> Country </Th> <Td> England </Td> </Tr> <Tr> <Th> Counties </Th> <Td> Northamptonshire, Leicestershire, Warwickshire, Worcestershire, Gloucestershire </Td> </Tr> <Tr> <Th> Towns </Th> <Td> Rugby, Warwick, Stratford, Evesham, Tewkesbury </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> River System </Th> <Td> Severn </Td> </Tr> <Tr> <Td_colspan="2"> Tributaries </Td> </Tr> <Tr> <Td> - left </Td> <Td> Leam, Stour, Isbourne </Td> </Tr> <Tr> <Td> - right </Td> <Td> Swift, Sowe, Arrow </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Source </Th> <Td> </Td> </Tr> <Tr> <Td> - location </Td> <Td> Naseby, Northamptonshire </Td> </Tr> <Tr> <Td> - coordinates </Td> <Td> 52 ° 23 ′ 51" N 0 ° 59 ′ 19" W ﻿ / ﻿ 52.3975 ° N 0.9887 ° W ﻿ / 52.3975; - 0.9887 </Td> </Tr> <Tr> <Th> Mouth </Th> <Td> </Td> </Tr> <Tr> <Td> - location </Td> <Td> Confluence with the River Severn, Tewkesbury </Td> </Tr> <Tr> <Td> - coordinates </Td> <Td> 51 ° 59 ′ 47" N 2 ° 09 ′ 48" W ﻿ / ﻿ 51.9964 ° N 2.1634 ° W ﻿ / 51.9964; - 2.1634 Coordinates: 51 ° 59 ′ 47" N 2 ° 09 ′ 48" W ﻿ / ﻿ 51.9964 ° N 2.1634 ° W ﻿ / 51.9964; - 2.1634 </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Length </Th> <Td> 137 km (85 mi) </Td> </Tr> <Tr> <Th> Basin </Th> <Td> 2,670 km (1,031 sq mi) </Td> </Tr> <Tr> <Th> Discharge </Th> <Td> for Evesham </Td> </Tr> <Tr> <Td> - average </Td> <Td> 15.5 m / s (547 cu ft / s) </Td> </Tr> <Tr> <Td_colspan="2"> Discharge elsewhere (average) </Td> </Tr> <Tr> <Td> - Bredon </Td> <Td> 16.7 m / s (590 cu ft / s) </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Progression: Avon--Severn--Bristol Channel--Celtic Sea </Td> </Tr> </Table> <Tr> <Td_colspan="2"> River Avon </Td> </Tr>

Where does the river avon start and end
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