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Cachapoal River is tributary
river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...
of the
Rapel River Rapel River is a river of Chile located in the O'Higgins Region. It begins at the confluence of the rivers Cachapoal and Tinguiririca in an area best known as ''La Junta''. At present day, this area is impounded by Rapel Dam, creating Rapel Lak ...
in
Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
located in the
Libertador General Bernardo O'Higgins Region The Libertador General Bernardo O'Higgins Region ( es, Región del Libertador General Bernardo O'Higgins, ), often shortened to O'Higgins Region ( es, Región de O'Higgins), is one of Chile's 16 first order administrative divisions. It is subdi ...
. The river gives its name to the
Cachapoal Province Cachapoal Province ( es, Provincia de Cachapoal) is one of three provinces of the central Chilean region of O'Higgins (VI). Its capital is the city of Rancagua (pop. 214,344). Geography and demography According to the 2002 census by the National ...
.


Cachapoal Valley

The valley takes its name from the Cachapoal River that flows through Rapel Valley along with its tributaries, the Claro and Cortaderal rivers. All these watercourses flow into
Rapel Lake Rapel Lake (Spanish: ''Lago Rapel'' or ''Embalse Rapel'') is an artificial lake created by a dam on the Rapel River. It is located in the Libertador General Bernardo O'Higgins Region, Central Chile Chile, officially the Republic of Chile, i ...
. Cachapoal River begun to
incise Incision may refer to: * Cutting, the separation of an object, into two or more portions, through the application of an acutely directed force * A type of open wound caused by a clean, sharp-edged object such as a knife, razor, or glass splinter * ...
in the rising Andes in the
Miocene epoch The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" ...
. Later, as glaciers developed in the Andes the upper part of the valley was glaciated and reshaped into a glacial valley. The climate of the valley is temperate and consistently
Mediterranean The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the e ...
, sheltered by the coastal range from the cooling influences of the
Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...
.


Wine

The northern half of the great
Rapel Valley Abseiling ( ; ), also known as rappelling ( ; ), is the controlled descent of a steep slope, such as a rock face, by moving down a rope. When abseiling the person descending controls their own movement down the rope, in contrast to low ...
has traditionally been known for its red wines, particularly
Carménère The Carménère grape is a wine grape variety originally planted in the Médoc region of Bordeaux, France, where it was used to produce deep red wines and occasionally used for blending purposes in the same manner as Petit Verdot. A member of t ...
,
Cabernet Sauvignon Cabernet Sauvignon () is one of the world's most widely recognized red wine grape varieties. It is grown in nearly every major wine producing country among a diverse spectrum of climates from Australia and British Columbia, Canada to Lebanon' ...
, and
Merlot Merlot is a dark blue–colored wine grape variety, that is used as both a blending grape and for varietal wines. The name ''Merlot'' is thought to be a diminutive of ''merle'', the French name for the blackbird, probably a reference to the ...
. These account for approximately 80% of the region's total production. The valley features diverse microclimates which support production for a wide array of grapes; these range from cold-climate varieties at higher altitudes near the
Andes The Andes, Andes Mountains or Andean Mountains (; ) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is long, wide (widest between 18°S – 20°S ...
, to varieties which need warmer climates in the areas surrounding Lake Rapel along the coastal hills.


References


Sources


Cuenca del río Rapel
Rivers of O'Higgins Region Rivers of Chile {{Chile-river-stub