Silver Stream / Whakaehu

Silver Stream is the site of a historic water race. The Silver Stream Water Race was built between 1877 and 1881, and consisted of nearly 30 kilometres (19 mi) of open races, sluices, tunnels, and weirs. The race began at a weir high on the river and traversed the sides of Swampy Summit and Flagstaff before emptying into a reservoir in Kaikorai Valley. Despite efforts to improve the race with the installation of a pump in 1920, it was not successful; problems with subsidence led to much of the race being enclosed in pipe, and the race was finally abandoned in the 1960s.