Primero River (Spanish: Río Primero), also known as Suquía (the
name used by the Comechingones, the indigenous people), runs through
the city of Córdoba, Argentina.
The tributaries of the Primero (mainly the San Roque and Cosquín
rivers) flow into the San Roque Reservoir; from there, the Primero
goes east into the plains surrounding the city of Córdoba.
Once inside the city, the river channels into La Cañada, a waterway
delineated by a stonework canal built through the downtown area, and
inaugurated in 1944. About 2 kilometres (1.2 mi) to the east,
Isla de los Patos (Ducks Island) was repopulated with ducks and swans
in the 1980s. During the crisis years of 1988–91 and 2001–02, the
duck population was devastated, allegedly by people desperately
looking for food. It was reported in March 2006 that
a large number of ducks had died due to unspecified causes. Pollution
by chemical waste is suspected as the cause, but avian influenza is
also being investigated as a possible cause.
Beyond the city limits, the river flows towards the Algarrobos swamp
and ends its course on the southern coast of the Mar Chiquita (or Mar
de Ansenuza) salt lake. All in all, the river has a length of
approximately 200 kilometres (120 mi) and carries, on average,
9.7 cubic metres per second (340 cu ft/s), with a minimum of
2 cubic metres per second (71 cu ft/s) and a maximum of 24
cubic metres per second (850 cu ft/s), with a peak during
the summer months.
Pollution of the water and of the riverbank is a major environmental
issue in Córdoba. Periodic cleaning operations are carried out to
increase the quality of the water and to preserve the viability of
fishing, both in the San Roque reservoir area and downstream.
Note: The major rivers of Córdoba are named by means of Spanish
ordinals from north to south: Primero, Segundo, Tercero… (literally:
First, Second, Third...); their indigenous names are also used,
notably in official documents and geography textbooks. Most people
alternate between the two names on a convenience basis.
^ La Nación (in Spanish)
^ Ramsar (in Spanish)
Detail of all inflows into Lake Ansenuza (in Spanish)
Coordinates: 31°22′30″S 64°28′00″W / 31.37500°S
64.46667°W / -31.3750