The Bourn Brook was in continuous use to power mills for several centuries. Harborne Mill was in Staffordshire until 1891. Pebble Mill and Edgbaston Mill were both in Warwickshire. Another mill was shown in 1787-9 on the most westerly of the streams from Edgbaston Pool where it joined the Bourn Brook near the Bristol Road. This may be the old silver rolling mill owned by Mr Spurrier referred to by Leonard, located near the present Eastern Road that was fed by the brook that ran from Edgbaston Pool.