In the Gates of the Arctic National Park and Preserve, in the Brooks Range, flows NW to the Kugrak River 6.4 km (4 mi) SW of Oyukak Mountain.
Named for a natural arch located in a side canyon N of the stream.
Lake Omelaktavik,
Oyukak Mountain,
Danger Pass,
Kugrak River,
Anorat Creek, Arch Creek, Karumnulima Creek, Oyukak Creek,