In the Talkeetna Mountains, flowing NE to the Little Oshetna River, 23 mi. NW of Tahneta Pass, 102 mi NE of Anchorage, Talkeetna Mts. 7 miles long.
Named in 1956 by U.S. Geological Survey (USGS) for the thick conglomerate rock beds through which the stream has cut.
Horn Mountain, Twin Hills, White Hill,
Mountain Passes:Horsepasture Pass, Limestone Gap,
Mountain Ranges:Ridges:Big Bones Ridge, Wall of China,
Rivers:Streams:Ammonite Creek, Bubb Creek, Cadoceras Creek, Cardiceras Creek, Cardioceras Creek, Conglomerate Creek, Gold Creek, Granite Creek, Greta Creek, Horsepasture Creek, McDougall Creek, Placer Creek, Red Creek, Shovel Creek, Sladen Creek,
Valleys: