Llyn Brenig
…Liverpool and its surrounding area. Its surface area of 920 acres (3.7 km2) makes it the fourth largest lake in Wales, behind Llyn Tegid (Bala Lake), Llyn Trawsfynydd and Lake Vyrnwy. Construction began in 1973 and was completed in 1976. An earthen bank with stone, which is up to 45 m (148 ft) at its highest point…