The Hudson River in New Yorks upstate Adirondack mountains
The answer is Xingu River.
mississippi
Lake Tana is the source of the Blue Nile and Lake Victoria of the White Nile.
It is true.
It is true.
The White Nile River begins at Lake No in South Sudan.
The headwaters to the Mississippi River begin at Lake Itasca in Minnesota. The terminus of the Mississippi is the Louisiana Delta region into the Gulf of Mexico.
The Hudson river originates from the Lake Tear of the Clouds in the Adirondack Mountains of Upper New York State. It starts from that lake and starts out with streams that eventually feed into and become the Hudson River.
Where a river begins is its source. It could begin at a mountain lake or as a branch of another river.
Erne
The Mississippi River rises out of Lake Itasca in northern Minnesota and flows southward for 2,320 miles to the Mississippi River Delta at the Gulf of Mexico.
According to WikiMapia: "The Mississippi River begins the 2,340 mile journey to the Gulf of Mexico at the northern tip of Lake Itasca"