North and South America.
North America.
The Darling River is in the continent and country of Australia.
The European Continent
Since Missisipi would be strange, I guess it's Colorado
It is found on the continent of South America.
Asia.
The Orinoco is in South America.
You can find the Danube River on the continent of Europe.
During his expedition he found the Colorado River.
You would and also in Oklahoma, Colorado and New Mexico.
Appennine mountains would be found in Europe Danube River also Europe.