Arakawa River

The Arakawa River () is one of the principal rivers flowing through Tokyo, the capital city of Japan. The point of origin is on Mount Kobushi in Saitama Prefecture, and the Arakawa empties into Tokyo Bay, spanning 173 kilometers. The drainage basin covers 2,940 square kilometers. The widest section of the river ranges 2,537 meters at around Gonari Bridge and ranks number one in the nation.
The Arakawa is a sister river with the Potomac River in the United States.