It passes just to the east of the small market town of Cleobury Mortimer and just south of the Hamlet (place) of Neen Savage, before entering the Teme at Newnham Bridge in Worcestershire.

The upper stretch of the river is known as the Rea Brook (not to be confused with the Rea Brook which flows from Marton Pool to the River Severn in Shrewsbury).

For a short stretch between Cleobury Mortimer and Neen Sollars the river forms part of the Shropshire-Worcestershire border.

[1] The name of the river derives from a root found in many Indo-European languages and means "to run" or "to flow".

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