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 ...
in the
Argentine
Argentines (mistakenly translated Argentineans in the past; in Spanish (masculine) or (feminine)) are people identified with the country of Argentina. This connection may be residential, legal, historical or cultural. For most Argentines, s ...
province
A province is almost always an administrative division within a country or sovereign state, state. The term derives from the ancient Roman ''Roman province, provincia'', which was the major territorial and administrative unit of the Roman Empire ...
of Santa Cruz. The name Deseado comes from the English ''Desire'', the name of one of the two ships commanded by John Davis during the
Thomas Cavendish
Sir Thomas Cavendish (1560 – May 1592) was an English explorer and a privateer known as "The Navigator" because he was the first who deliberately tried to emulate Sir Francis Drake and raid the Spanish towns and ships in the Pacific and retu ...
expedition of 1592.
The source of the river is located as the Fénix River some kilometers north of the Buenos Aires Lake in the northwestern part of the province at 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 ...
range. Originally, if then flowed into the lake (and the via Rio Baker into the Pacific). In 1898, a canal was built that turned it into today's Rio Deseado, flowing for before reaching the
Atlantic
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe an ...
Coast. On its way southeast, its water is tapped for
irrigation
Irrigation (also referred to as watering) is the practice of applying controlled amounts of water to land to help grow Crop, crops, Landscape plant, landscape plants, and Lawn, lawns. Irrigation has been a key aspect of agriculture for over 5,00 ...
. Its
tributaries
A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage b ...
include the
Pinturas River
The Pinturas River (, Spanish for Painted River or River of Paintings) is a river in Patagonia, Argentina, running through the Pinturas River Canyon, near the Cueva de las Manos archeological site. The river's main tributary is the Ecker River. Th ...
.
The river sometimes disappears under the arid terrain, to re-emerge before reaching
Puerto Deseado
Puerto Deseado, originally called Port Desire, is a city of about 15,000 inhabitants and a fishing port in Patagonia in Santa Cruz Province of Argentina, on the estuary of the Deseado River.
It was named ''Port Desire'' by the privateer Thomas C ...
on Santa Cruz's coastline, where it produces a deep-water natural port. The outlet of the river has become submerged and inundated by sea water, forming an estuary. In 1977, this was set aside as a nature reserve, the ''Reserva Natural Ría Deseado''.