From the source in British Columbia to the mouth in Alaska the Yukon River is 1,984 miles in length. The Mackenzie River in the Northwest Territories is the longest in North America at 2,635 miles long.
The Yukon is about 3,700 kilometres (2,299.08 miles) in length by some sources,
whilst others put it at 3,190 km (1,980 miles).
Research has suggested that the latter figure is probably the best figure to use.
The Yukon River is a major watercourse of northwestern North America. The Yukon river is about 258 meters wide and 3185 kilometers long.
the Yellowstone starts just south of Yellowstone park and flows 768 miles to the Missouri river.
The widest point of the tennessee river is near the tributary of the ohio river, reaching 1 1/2 miles wide at its widest point.
The merced river gets up to 50 ft wide at its widest point.
300m
8,979
26km at chelyabinks
The River Severn is over 50 kilometers wide at its widest point near the city of Bristol. This is equal to about 31 miles.
The river ob is 200000m long and 60 miles wide
Its the Rio de la Plata that reaches 140 miles wide at its widest point.
5 miles
At it's widest point the Danube River is 1.5km (0.93 miles(1,640 yards)) wide.
Volga river.
About 150 miles at the widest point