Build it near a river.
it was not build it was build naturily n ot man made
Danube River Valley
A river valley forms from a river from the river going into a valley
river valley is a river and a valley, like if a long stream of a river that is all i can say people.
Mesopotamia Indus river valley Niger river valley Andes mountains Chinese river valley
a river valley civilization is a settlement made next to river is a river valley civilization
Virgina lieutenant governor and his men was sent to build a fort at the head of the Ohio river
Rhône River valley
No, it was in a river valley.
snake river valley
a valley through which a river runs threw.