The upper reaches of the River Kennet have two tributaries: the River Og which flows into the Kennet at Marlborough and the River Dun which enters at Hungerford.
The upper reaches of the River Kennet have two tributaries: the River Og. This River Og flows into the Kennet at Marlborough. This River Og flows into the Kennet at the River Dun. This River Dun enters at Hungerford.