Pascua River
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| Pascua River | |
|---|---|
| Origin | O'Higgins/San Martín Lake |
| Mouth | Baker Channel |
| Basin countries | Chile/Argentina |
| Length | 62 km |
| Avg. discharge | 574 m³/s |
| Basin area | 14,760 km² |
The Pascua River is a river located in the Aysen Region of Chile. In spite of being a short river, its drainage basin is the seventh-largest in the country due to the great size of the O'Higgins/San Martín Lake, its source.
The Pascua River was discovered in 1898 by the German Hans Steffen, during the exploration of the area near Christmas time (Pascua means Easter but is frequently used to describe Christmas in Chilean Spanish, thus explaining the origin of its name). The river has its source in the northern part of the north-west arm of the lake O'Higgins in the form of a small stream, in a zone surrounded by mountains that reach over 1,000 meters, which have deep valleys with glaciers that empty to the lake or the river.
The river flows quickly forming rapids until to create a cascade in the place where it falls into the Chico Lake. After leaving this lake, the river forms a new cascade and rushes furiously, preventing any type of navigation on its waters. The "Quiroz River", whose origin is the glacier of the same name, ends in the left shore of the river, increasing its width in a valley of near 10 kilometers wide, allowing the appearance of great meanders and some marshy and peaty zones.
After 62 km, the Pascua River ends in a wide delta that empties into the Baker Channel, previously rushes in a last area of rapids.
Due to its hydrographic conditions, the Pascua River has a hydroelectric potential of great importance. There exists a controversial Endesa project to construct two massive power dams on the course of the river, but the proposal has generated immediate opposition from a great part of the population and in the government authorities, due to the serious ecological damage that would cause in the zone.
[edit] References
- This article draws heavily on the corresponding article in the Spanish-language Wikipedia, accessed November 10, 2006.
