The
Kapuas River (or Kapueas) is a river in the
Indonesian part of
Borneo island. It originates in the Müller Mountain Range at the center of the island and flows south until merging with the
Barito River and discharging into the
Java Sea. It should be distinguished from another
Kapuas River, which starts on the other side of the same mountain range in central Borneo, but flows to the west and empties to the
South China Sea.