trends NE to mouth of Caribou Creek, coursed by South Fork Birch Creek, 45 mi. SW of Circle, Yukon-Tanana Highlands.
Prospectors' name reported in 1954 or 1955 by U.S. Geological Survey (USGS) topographers.
Big Windy Creek, Caribou Creek, Cottonwood Creek, Sheep Creek, South Fork Birch Creek, Williams Creek, Yukon Fork South Fork Birch Creek,
Valleys: