the river Rhine
Rhine's length is 820 miles (1,320 kilometers).
It starts at the Alps and ends at the Adriatic Sea. Hope thats helpfull.
The Po River starts in the Alps, and ends in the Adriatic Sea.
The Nile River begins north of 45 north latitude in Africa and ends south of 30 north latitude where it empties into the Mediterranean Sea.
It starts at Switzerland and ends at The Netherlands.
The River Thames flows into the North Sea.
It ends at Ipswich when it joins the River Orwell, which flows into the North Sea.
Mississippi River. *Sorry if this is a late answer T-T.
Ems
thames
The source is Will Narr in North West England and ends where it joins the River Douglas.
It starts at 31 degrees North latitude and ends at 7 degrees south latitude.It ends at 30 degrees north longitude and ends at 30 degrees south longitude.