SPAIN !
The Ebro river flows southeast from beginning to end.
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The Ebro is the river with the most abundant flow in Spain.
The ebro is the only river in Spain that flows eastward.
69 countries
The Ebro River
through middle asia
There are a couple of notable rivers in Spain. The Ebro has the most abundant flow, the Tagus is the longest, and the Guadalquivir irrigates a fertile valley at the same time as it is navigable inland and allows the city of Sevilla to be an international port even though it is many miles from the ocean.
The Nile is known to flow through 20 different country's.
China.
Hungary, Slovakia