Severn

Severn, THE, rises at Maes Hafren, on the N. slope of Plinlimmon, and flows in a semicircular course of 210 miles past Llanidloes, Newtown, Welshpool, Shrewsbury, Bridgnorth, Bewdley, Worcester, Tewkesbury, and Gloucester, till it opens out into the Bristol Channel. Its basin extends over 6,OOO square miles, the chief tributaries being the Vyrnwy, the Stour, the Teme, the two Avons, and the Wye. Owing to its narrowness, it is subject to a strong tidal wave or bore. The Severn Tunnel at Bristol was completed in 1885.