Mount Billy Mitchell, Mountain summit in Valdez-Cordova Census Area, Alaska.

Mount Billy Mitchell is a 6,919-foot (2,109 m) peak in the Chugach Mountains, 35 miles east of Valdez and 12 miles west of the Copper River. It stands as a landmark beside mile markers 43 to 51 of the Richardson Highway, which passes to its west between Tonsina and Thompson Pass. Glaciers lie on its north face, the leeward side, where snow driven in from the Gulf of Alaska accumulates.

The mountain was named after Lieutenant William Mitchell, who oversaw the construction of Alaska's first telegraph network in the early 1900s. This communication line connected military outposts across vast distances.

A historical marker at a Richardson Highway turnout north of the Tiekel River crossing names the peak and quotes Mitchell's Alaska-derived idea: "he who holds Alaska will hold the world." The marker, placed by the Alaska Department of Transportation & Public Facilities, also notes his 1946 posthumous Medal of Honor.

Climbers reach the mountain from Richardson Highway and cross the Tsina River to access the peak. The ascent requires winter climbing equipment and technical skills, particularly during colder months.

A historical marker at a roadside turnout just north of where the Richardson Highway crosses the Tiekel River commemorates Mitchell. Placed by the Alaska Department of Transportation & Public Facilities, it quotes his Alaska-derived idea that whoever holds Alaska holds the world, and notes his 1946 posthumous Medal of Honor.