Bourne Eau rises in , otherwise known as St Peter's Pool, in the town of
Bourne, Lincolnshire. The Wellhead is a natural
artesian spring which once formed the source of the water defences of Bourne Castle as well as the power for the town's
mills. On entering Bourne North Fen it follows an artificial course which it was given, probably, in the first half of the
thirteenth century when the south Lincolnshire Fens were
disafforested. Hitherto, it had flowed (latterly rather badly) in the channel known as the Old Ea which was of
Roman date, most likely
second century. The present course enters the
River Glen at , a name which derives from the low tongue of land within the enclosing banks of the rivers.
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