cuador has a interesting hydrography in his Orient. The principals rivers, the quantity of tributaries that feed his caudals, the marshes, bogs and continuous inundations, the narrow land that separates his systems, everything shows to the Orient like a zone where each manifestation of life or activity depend of his water.
    These considerations are of vital importance for the future economy of the Republic of Ecuador. The rivers help to incorporate new lands to the national productivity slowly, but for sure.
    Before, Ecuador didn't want more lands because the governments thought that our country has lands in abundance; the oriental  increase didn't inspire so much to the people and it was terrible for the national integrity.
    The hydrographic system of the Orient is formed by the rivers that born in the mountain range and go to Atlantic. These rivers run over the Andes and participate of his characteristics: Extremely broken land to incline to the east; the rivers and brooks that cross their region are torrentia and form big falls.
   Many ecuadorian rivers have his roots very far of the mountain range and are formed in thel oriental plain.
    Orient's rivers are so uncountables like the mountains, mountains ranges, peaks, branches and hills.
    Many others rivers born in the descent of the mountain range and get together with others rivers  down. Since Tiopullo's knot  until Tiocajas's knot  are the Pastaza's  tops that break  the oriental branch deeply and run until to drain in the Amazonas.

Many importans rivers cross the mountain range and drain in oriental rivers.
 

Paute, (Cuenca, Yanuncay, Gualaceo) Zamora river.
 
Napo
Nanay
Moracanate
Tigre
Manamesa
Chambira
Camarón
Amaliguachayo
Sucuray
Pastaza
Morona
Cenepa
Santiago
Turumbaca
Paracoca
Chinchipe
drain in

AMAZONAS
 
San Miguel river or Sucumbios flow from Putumayo city (1645 km.) which is limiting with Colombia.


 
IMPORTANTS RIVERS
It is the first river in the Republic, it borns from the some volcanos: Antizana, Sincholagua and Cotopaxi, Quilindaña. It drains his caudal to 90 Km. down from Iquitos. Puerto Napo is to 1210 Km from Amazonas; it has many flowings like: Curaray, Coca, Villonaco, Yamboyacu.
It runs to the east and receives the Payamino, Suno, Hollín, Anzu, Arajuno, Aguano, Napotoa, Santa  Rosa; it joins with the Coca and change of direction to SouthEast until the Amazonas; It is 1100 Km long.
 
 
 
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It borns from the Chambo river and the Patate. It brokes the mountain range behind the Tungurahua, then it receives to the Bobonaza, that it quieter than the Napo. His principals flowings are: Verde, Topo, Negro, Blanco, Suñac, Pindo y Bobonaza.
 
 
 
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It borns in Cuenca in the lakes Quinuas, Cajas and Culebrillas. It goes to the line South East South (SES) and then changes to South South East (SSE), until join with the Zamora where it takes his name. It drains in the Pongo of Manserriche. His principals flowings for the right are: Pucará, Yanuncay, Quingeo, Gualaceo and Pan, Zamora, Rosario; for the left are:  Machángara, Azogues; for the south: Yuracyacu, Guachapala, Pindilíg, Jordán; for the North are: Yasuní, Sidcay, Porotos, Taday, Pindilíg, Santo Tomás, Judal.
 
 
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It borns in the Oriental mountain range and his principals flowings for the right are:  Apatinoma, Yana-yacu, Urinañuño, Uchic, Chalgua, Guachi, Mayarraga; for the left: Itazuri, Arabisno, Tosani, Yanacu, Echicero, Cipanga, Apianga, Atun-cocha, Puchanga.
 
 
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His deep is of 10 to 20 m. (3 - 7 feets). It drains to 605 Km from Yaravi. His principals flowings are: Corrientes and Pucacuro.
 
 
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It borns in the Zamora and Sabanilla's mountain range with the names of Loyola and Sabanilla; they receive the name of Chinchipe after. His principals flowings for the right are: Palanda, Yambanuma, Isimánchi, Zumba, Cachillí, Chirinos, Chiripa y Manbelle; for the left are: Nomballa, Verjel, Loyola San Francisco, Gamalotes, Pucará, Pericos, Chito.

 

 
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