dam in a river
yser
Clay.
Avon
Wadi
ural
Ural
ooze
There are several rivers that have four letter names. One of the most well known is the Nile. Others include the Ural River, the Ohio River, and the Elbe.
ularu river
pawcatuck river, potowomut river, providence river, and sakonnet river
Aliakmon river, Acheloos river, Pinios river and Evros river.