Madre de Dios

American  

[mah-thre the dyaws] / ˈmɑ ðrɛ ðɛ ˈdyɔs /

noun

1. a river in Peru and Bolivia, flowing E to the Beni River. 900 miles (1,450 km) long.

---

Madre de Dios British  

/ ˈmaðre ðe ˈðiɔs /

noun

1. a river in NE South America, rising in SE Peru and flowing northeast to the Beni River in N Bolivia. Length: about 965 km (600 miles)

---

Example Sentences

Of all the threads in “Junglekeeper,” Mr. Rosolie’s tales of encounters with uncontacted people in the Madre de Dios are the most electrifying.

From The Wall Street Journal • Jan. 29, 2026

Informal miners even in government-designated mining corridors, which includes much of the Madre de Dios region, operate with little regulatory oversight.

From Reuters • Aug. 5, 2023

Up to $3 billion in gold is thought to be exported each year from Madre de Dios alone.

From Science Magazine • Jan. 11, 2023

The Amazonian departments of Ucayali, Loreto and Madre de Dios, Peru, saw road expansion increase by 25% from 2019 to 2020 and 16% from 2020 to 2021.

From Salon • Oct. 4, 2022

Santa Maria, Madre de Dios, answered my prayers.

From "The Dead and the Gone" by Susan Beth Pfeffer