The Casma River, which upstream is called Río Grande, is a river that crosses northern Casma province in the

Ancash Region Ancash (; ) is a department and region in western Peru. It is bordered by the departments of La Libertad on the north, Huánuco and Pasco on the east, Lima on the south, and the Pacific Ocean on the west. Its capital is the city of Huaraz, ...

Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...

. It originates in the Black Mountain Range and drains into the

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...

. Major tributaries include the Sechín River (right). The valley contains the small, once important town of Casma, which had to be rebuilt after being destroyed by the

1970 Ancash earthquake The 1970 Ancash earthquake (also known as the Great Peruvian earthquake) occurred on 31 May off the coast of Peru in the Pacific Ocean at . Combined with 1970 Huascarán debris avalanche, a resultant landslide, it is the most catastrophic natura ...

. The new town has been completed.

Economy

The main economic activity is

agriculture Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created ...

. The valley produces fruits: including

avocado The avocado, alligator pear or avocado pear (''Persea americana'') is an evergreen tree in the laurel family (Lauraceae). It is native to Americas, the Americas and was first domesticated in Mesoamerica more than 5,000 years ago. It was priz ...

passionfruit ''Passiflora edulis'', commonly known as passion fruit, is a vine species of passion flower native to the region of southern Brazil through Paraguay to northern Argentina. It is cultivated commercially in tropical and subtropical areas for its ...

apple An apple is a round, edible fruit produced by an apple tree (''Malus'' spp.). Fruit trees of the orchard or domestic apple (''Malus domestica''), the most widely grown in the genus, are agriculture, cultivated worldwide. The tree originated ...

mango A mango is an edible stone fruit produced by the tropical tree '' Mangifera indica''. It originated from the region between northwestern Myanmar, Bangladesh, and northeastern India. ''M. indica'' has been cultivated in South and Southeast As ...

es, pacay,

banana A banana is an elongated, edible fruit – botanically a berry – produced by several kinds of large treelike herbaceous flowering plants in the genus '' Musa''. In some countries, cooking bananas are called plantains, distinguishing the ...

s, guayaba, pepino, and

grapes A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus ''Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began approximately 8,0 ...

; and other crops, including

corn Maize (; ''Zea mays''), also known as corn in North American English, is a tall stout Poaceae, grass that produces cereal grain. It was domesticated by indigenous peoples of Mexico, indigenous peoples in southern Mexico about 9,000 years ago ...

cotton Cotton (), first recorded in ancient India, is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus '' Gossypium'' in the mallow family Malvaceae. The fiber is almost pure ...

asparagus Asparagus (''Asparagus officinalis'') is a perennial flowering plant species in the genus ''Asparagus (genus), Asparagus'' native to Eurasia. Widely cultivated as a vegetable crop, its young shoots are used as a spring vegetable. Description ...

, chilies, and several kinds of

bean A bean is the seed of some plants in the legume family (Fabaceae) used as a vegetable for human consumption or animal feed. The seeds are often preserved through drying (a ''pulse''), but fresh beans are also sold. Dried beans are traditi ...

Archaeology

The Casma Valley, a coastal valley situated about north of

Lima Lima ( ; ), founded in 1535 as the Ciudad de los Reyes (, Spanish for "City of Biblical Magi, Kings"), is the capital and largest city of Peru. It is located in the valleys of the Chillón River, Chillón, Rímac River, Rímac and Lurín Rive ...

, lies along the Casma River, between the towns

Chimbote Chimbote ; ) is a city in northwestern Peru. It is the largest city in the Ancash Region and the List of cities in Peru, tenth most populous in Peru. With a population of 425,367 in 2017, it is the capital of both Santa Province and Chimbote Dist ...

and Huarmey. It is notable for the grand scale of numerous

archaeological site An archaeological site is a place (or group of physical sites) in which evidence of past activity is preserved (either prehistoric or recorded history, historic or contemporary), and which has been, or may be, investigated using the discipline ...

s of the Casma/Sechin culture, including stone-faced pyramids and the Thirteen Towers of Chankillo.

Sechín Alto Sechin Alto is a massive architectural complex in Peru belonging to the Early Formative period (2000-1500 BC). It is located in the Casma Province, the Ancash Region, on the left bank of the Sechín River, east of the town of the same name. Other ...

is the largest American construction of the second millennium BCE. Cerro Sechin is also from the Sechin culture.

Huaynuná

(Coordinates ) The coastal pre-ceramic site of Huaynuná (Huaynuma), 13 km north of the Casma Valley, has also been investigated by archaeologists. An early, public religious tradition of architecture is represented there by a large elevated structure built on a hillside. This is a precursor to the much larger Initial Period religious mounds on the coast of Peru. Evidence from Huaynuná, as well as the dates from other Casma Valley sites, indicate that larger-scale irrigation agriculture, use of pottery, and weaving did not appear in the Casma Valley area until about 1600 BC, some 200 years later than similar developments on the central coast of Peru. Also, at Huaynuma, potatoes dating to about 2000 BC have been found. This is one of the earliest such discoveries in South America.

Notes

References

Arqueologia e historia en el valle de Casma

External links