Proper noun
Ucayali
A river in Peru, a major source of the Amazon
Between 1637 and 1652, there were 14 missions established along the Marañon river and its southern tributaries – the Huallaga and the Ucayali rivers. Source: Internet
Samuel Fritz 's 1707 map showing the Amazon and the Orinoco Between 1637 and 1652, there were 14 missions established along the Marañón River and its southern tributaries—the Huallaga and the Ucayali rivers. Source: Internet