Swansea at the mouth of the river Tawe, covering in the county of Glamorgan. There were three major extensions to the boundaries of the borough, first in 1835, when Morriston, St Thomas, Landore, St John-juxta-Swansea, and part of Llansamlet parish were added, and again in 1889 when areas around Cwmbwrla and Trewyddfa were included, and in 1918 when the borough was enlarged to include the whole of the ancient parish of Swansea, the southern part of Llangyfelach parish, all of Llansamlet parish, Oystermouth Urban District and Brynau parish. In 1889, Swansea attained county borough status, and it was granted city status
Swansea Canal culvert through large metal grids. There was a short tramway from below the lock to Ynys-penllwch Graig-ola Colliery. Mond Lock was next, with the B4603 crossing the tail of the lock. Below the bridge is the Mond Nickel Works, set up in 1900 after the chemist Dr Ludwig Mond discovered a process for producing pure nickel. Nickel ore was imported from Canada, and the site was chosen because there were supplies of anthracite coal, water, transport links to Swansea, and an available labour force. The canal crosses the Lower Clydach River on an aqueduct, which discharges water into the river,