flows NE to Seventymile River, 32 mi. NW of Eagle, Yukon-Tanana High. 22 miles long.
Named by prospectors apparently for rock prevalent in the area; shown on a 1902 fieldsheet by T. G. Gerdine, U.S. Geological Survey (USGS).
Alder Creek, Barney Creek, Bonanza Creek, Deep Creek, Deer Creek, Dome Creek, Eagle Creek, Easter Creek, Granite Creek, Last Chance Creek, Nugget Creek, Nugget Creek, Placer Creek, Placer Creek, Ruby Creek, Surprise Creek, Suter Creek, Sutter Creek,
Valleys:Eight Gulch, Owl Gulch, Seventeen Gulch, Ten Gulch, Thirteen Gulch, Union Gulch,