Two and a half mi WSW of Porcupine Dome, on the divide between the headwater tributaries of Birch, Crooked, and Preacher Creeks, 32 mi W of Circle Hot Springs, Yukon-Tanana High.
Named by Lieutenant Commander R. Darling, U.S. Coast and Geodetic Survey (USC&GS), for Robert E. Pinnell of the Coast & Geodetic Survey, who was killed on July 17, 1952 while climbing on nearby Porcupine Dome (US-T121). The mountain was considered part of Porcupine Dome by Spurr (1898, p. 50), U.S. Geological Survey (USGS).
Pinnell Mountain, Porcupine Dome,
Mountain Passes:Rivers:Streams:Bates Creek, Bear Creek, Butte Creek, Dome Creek, Eagle Creek, Fish Creek, Gold Dust Creek, Mastodon Fork Eagle Creek, Miller Fork Eagle Creek, Ninetyeight Pup, North Fork Birch Creek, North Fork Twelvemile Creek, Ptarmigan Creek, South Fork Twelvemile Creek, Twelvemile Creek, Willow Creek, Yankee Creek,
Routes:Pinnell Mountain Trail, Pinnell Trail,
Valleys: