Flows S to the Tatonduk River, 15 mi N of Eagle, Porcupine Plateau. 4 miles long.
So named in 1930 by J. B. Mertie, Jr., U.S. Geological Survey (USGS), because "like a funnel, its open upper valley leads into a narrow canyon-like lower valley."
Adams Peak, Hillard Peak, Jones Ridge, McCann Hill, Nimrod Peak, Squaw Mountain, Three Castle Mountain,
Ridges:Streams:American Creek, Boulder Creek, Cathedral Creek, Funnel Creek, Harrington Creek, Last Chance Creek, Mission Creek, Pass Creek, Pleasant Creek, Shade Creek, Thicket Creek,