Heading in Yukon, Canada, flowing SW into Alaska, to Hard Luck Creek 24 mi N of Eagle, Porcupine Plateau. 18 miles long.
So named in 1909 by International Boundary Commission (IBC) survey because of the bare cathedrallike mountains along its course.
Star,
Lakes:Mountains:Adams Peak, Mount Casca, Hillard Peak, Jones Ridge, Little Nation Hill, Nimrod Peak, Squaw Mountain, Three Castle Mountain, Windfall Mountain,
Ridges:Rivers:Seventymile River, Tatonduk River,
Streams:Cathedral Creek, Funnel Creek, Harrington Creek, Pass Creek, Pleasant Creek, Thicket Creek,