Apurímac River (total length): 730.7 km (454.0 mi)
Ene River (total length): 180.6 km (112.2 mi)
Tambo River (total length): 158.5 km (98.5 mi)
Ucayali River (confluence with Tambo River to confluence with the Marañón): 1,600.1 km (994.3 mi)
Explorationedit
The Ucayali was first called San Miguel, then Ucayali, Ucayare, Poro, Apu-Poro, Cocama and Rio de Cuzco. Peru has organised many costly and ably-conducted expeditions to explore it. One of them (1867) claimed to have reached within 380 km (240 mi) of Lima, and the little steamer "Napo" found its way up the violent currents for 124 km (77 mi) above the junction with the Pachitea River, and as far as the Tambo River, 1,240 km (770 mi) from the confluence of the Ucayali with the Amazon. The "Napo" then succeeded in ascending the Urubamba River 56 km (35 mi) upstream from its junction with the Tambo, to a point 320 km (200 mi) north of Cuzco.
Navigationedit
The Ucayali's width varies from 400–1,200 metres (1,300–3,900 ft), due to the large number of islands. The current runs from 5–6 kilometres per hour (3.1–3.7 mph), and a channel from 20–50 metres (66–164 ft) wide can always be found with a minimum depth of 1.5 m (4.9 ft). There are five difficult passes, due to the accumulation of trees and rafts of timber. Sometimes large rocks which have fallen from the mountains and spread across the riverbed cause whirlpools.
ucayali, river, ucayali, redirects, here, other, uses, ucayali, disambiguation, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, fin. Ucayali redirects here For other uses see Ucayali disambiguation This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Ucayali River news newspapers books scholar JSTOR February 2015 Learn how and when to remove this template message The Ucayali River Spanish Rio Ucayali IPA ˈri o wkaˈʝali is the main headstream of the Amazon River It rises about 110 km 68 mi north of Lake Titicaca in the Arequipa region of Peru and becomes the Amazon at the confluence of the Maranon close to Nauta city The city of Pucallpa is located on the banks of the Ucayali Ucayali RiverConfluence of the Tambo from bottom and Urubamba Rivers background right forming the Ucayali River background left Map of the Amazon Basin with the Ucayali River highlightedLocationCountryPeruPhysical characteristicsSourceconfluence of the Tambo and Urubamba Rivers locationAtalaya Ucayali PeruMouthAmazon River locationconfluence with Maranon River Loreto PeruLength2 238 km 1 391 mi 1 1 460 km 910 mi 2 Basin size351 549 km2 135 734 sq mi 1 Discharge locationRequena Peru average Period of data 1990 2006 13 385 m3 s 472 700 cu ft s 4 13 500 m3 s 480 000 cu ft s Confluence of Maranon 13 800 m3 s 490 000 cu ft s minimum3 000 m3 s 110 000 cu ft s 3 maximum28 000 m3 s 990 000 cu ft s 3 Discharge locationPucallpa Peru Basin size 260 733 km2 100 670 sq mi average Period of data 1990 2006 8 931 2 m3 s 315 400 cu ft s 4 Basin featuresTributaries leftTambo Pachitea Aguaytia Pacaya Pisqui Cushabatay rightUrubamba Tamaya Tapiche Contents 1 Description 2 Exploration 3 Navigation 4 National Reserve 5 See also 6 References 7 External linksDescription editThe Ucayali together with the Apurimac River the Ene River and the Tambo River is today considered the main headwater of the Amazon River totaling a length of 2 669 9 kilometres 1 659 0 mi from the source of the Apurimac at Nevado Mismi to the confluence of the Ucayali and Maranon Rivers Apurimac River total length 730 7 km 454 0 mi Ene River total length 180 6 km 112 2 mi Tambo River total length 158 5 km 98 5 mi Ucayali River confluence with Tambo River to confluence with the Maranon 1 600 1 km 994 3 mi Exploration editThe Ucayali was first called San Miguel then Ucayali Ucayare Poro Apu Poro Cocama and Rio de Cuzco Peru has organised many costly and ably conducted expeditions to explore it One of them 1867 claimed to have reached within 380 km 240 mi of Lima and the little steamer Napo found its way up the violent currents for 124 km 77 mi above the junction with the Pachitea River and as far as the Tambo River 1 240 km 770 mi from the confluence of the Ucayali with the Amazon The Napo then succeeded in ascending the Urubamba River 56 km 35 mi upstream from its junction with the Tambo to a point 320 km 200 mi north of Cuzco Navigation editThe Ucayali s width varies from 400 1 200 metres 1 300 3 900 ft due to the large number of islands The current runs from 5 6 kilometres per hour 3 1 3 7 mph and a channel from 20 50 metres 66 164 ft wide can always be found with a minimum depth of 1 5 m 4 9 ft There are five difficult passes due to the accumulation of trees and rafts of timber Sometimes large rocks which have fallen from the mountains and spread across the riverbed cause whirlpools National Reserve editThe Ucayali is home to the Amazon river dolphin giant otter and the Amazonian manatee which are abundant in Pacaya Samiria National Reserve close to Nauta The southeastern border of the reserve is formed by the lower Ucayali River The river gives its name to the Ucayali Region of Peru and the Ucayali Province of the Loreto Region See also editScinax pyroinguinisReferences edit a b Archived copy PDF Archived from the original PDF on 2021 11 13 Retrieved 2023 04 06 a href Template Cite web html title Template Cite web cite web a CS1 maint archived copy as title link Ziesler R Ardizzone G D 1979 Amazon River System The Inland waters of Latin America Food and Agriculture Organization of the United Nations ISBN 92 5 000780 9 Archived from the original on 8 November 2014 a b Archived copy PDF Archived from the original PDF on 2021 11 13 Retrieved 2023 04 06 a href Template Cite web html title Template Cite web cite web a CS1 maint archived copy as title link a b Nuevo Repositorio Institucional PDF Retrieved 2023 04 06 External links edit nbsp Wikimedia Commons has media related to Ucayali River 8 35 31 S 74 21 59 W 8 59188 S 74 36646 W 8 59188 74 36646 Retrieved from https en wikipedia org w index php title Ucayali River amp oldid 1188380106, wikipedia, wiki, book, books, library,
