As River

Ash River
Location
CountrySouth Africa
ProvinceFree State
Physical characteristics
Source 
  coordinates28°30′38″S 28°21′47″E / 28.51056°S 28.36306°E / -28.51056; 28.36306
  elevation2,160 m (7,090 ft)
Mouth 
  coordinates
28°16′36″S 28°22′22″E / 28.27667°S 28.37278°E / -28.27667; 28.37278
  elevation
1,630 m (5,350 ft)
Length50 km (31 mi)
Discharge 
  average18 m3/s (640 cu ft/s)

The As River is a tributary of the Liebenbergsvlei River in the eastern Free State, South Africa. Since 1968 it is impounded by the Sol Plaatje Dam (formerly: Saulspoort Dam) at its confluence with the latter river, just east of Bethlehem. Its origin is some 35 km southeast of Bethlehem, on the northern slopes of the Rooiberge, near Clarens. With the opening of the northern delivery tunnel of the Lesotho Highlands Water Project in 1998, the once tiny stream was transformed to a strong-flowing river.