Icalma Lake

Icalma Lake
Location of lake in Chile
Location of lake in Chile
Icalma Lake
Coordinates38°48′S 71°17′W / 38.800°S 71.283°W / -38.800; -71.283
Primary inflowsHuillinco and Icalma rivers
Primary outflowsRukanuco River
Catchment area150 km2 (58 sq mi)[1]
Basin countriesChile
Max. length9 kilometres (5.6 mi)
Max. width2.5 kilometres (1.6 mi)
Surface area9.8 square kilometres (2,400 acres)
Average depth66 m (217 ft)[1]
Max. depth135 m (443 ft)[1]
Water volume.6 cubic kilometres (490,000 acre⋅ft)
Surface elevation1,150 m (3,770 ft)[1]
References[1]

Icalma Lake is a lake of glacial origin located in the Andes of the La Araucanía Region of Chile. A hamlet on the southern shore of the lake is also called Icalma. About 3 kilometres (1.9 mi) from the hamlet is Icalma Pass, 1,307 metres (4,288 ft) in elevation and on the border with Argentina. The pass is traversed by a road, unpaved in Chile in 2017 and sometimes impassable during the Southern Hemisphere winter due to heavy snows.[2] Icalma Airport is located 9 kilometres (5.6 mi) northeast of the hamlet.

Icalma Lake is connected to the Laguna Chica de Icalma (Little Lake of Icalma) by a short stream about 300 metres (980 ft) long. The two lakes together have a surface area of 11.7 square kilometres (2,900 acres).[1] Icalma Lake drains northeastwards by way of a 10 kilometres (6.2 mi) long river named Rukanuco. Icalma Lake and nearby Galletué Lake are the sources of the Bio Bio River.[1]

The outlet from Lake Icalma, one of the two sources of the Bio Bio River.
  1. ^ a b c d e f g [1] Archived 2016-03-04 at the Wayback Machine, El Sistema Fluvial Río Bío-Bío: Area de Aplicación del Modelo
  2. ^ "Paso Icalma," http://www.dangerousroads.org/south-america/chile/5277-paso-icalma.html, accessed 17 Apr 2018