River Wye boundary, and beyond it at least to Hay on Wye. A horse towing path was added in 1808, but only up to Hereford; previously, as on the River Severn, barges were man-hauled. Money was spent several times improving the River Lugg from Leominster to its confluence with the Wye at Mordiford, but its navigation is likely to have been difficult. The Wye remained commercially navigable until the 1850s, when commercial traffic moved to railways. It is still used by pleasure craft. In 2017 MORE than 600 people took to the River Wye in inflatables ranging from dinghies to paddling pools
England–Wales border then runs westwards to the River Teme, and follows the river southeastwards through Knighton before turning south towards the River Lugg at Presteigne, which is within Wales. The boundary continues southwards across hills to the River Wye, and follows the river upstream for a short distance to Hay-on-Wye, on the Welsh side of the border. It continues southwards and rises through and across the Black Mountains, following the Hatterall Ridge past Llanthony on the Welsh side and Longtown on the English side, to reach the River Monnow near Pandy. It then generally follows the river, past Pontrilas (in England) and