Assuming you mean either of the the rivers in america - it's Withlacoochee
North to south
river seine
The likely river is the Loosahatchie River in Tennessee.(There is also a Loxahatchee River in Florida.)
Río
Река
The Portuguese for the English word 'river' is rio.
Amazon River
The correct spelling is the Susquehanna River, primarily in Pennsylvania.
Is it the River Thames? I think that's how you spell it.
yes
Rhine
You have spelled it correctly.