|Elevation||12,726 ft (3,879 m)|
|Prominence||7,214 ft (2,199 m)|
|Location||Glacier Bay National Park, Hoonah-Angoon Census Area, Alaska, U.S.|
|Range||Fairweather Range, Saint Elias Range|
|Topo map||USGS Mount Fairweather C-4 Quadrangle|
|First ascent||1934 by Bradford Washburn, H. Adams Carter|
|Easiest route||West ridge: glacier/snow/ice/rock climb (Alaska Grade 4)|
Mount Crillon is a high peak of the Fairweather Range, the southernmost part of the Saint Elias Range. It lies southeast of Mount Fairweather, in the promontory between the Gulf of Alaska and Glacier Bay. It is included in Glacier Bay National Park. The peak was named after Felix-Francois-Dorothee de Bretton, Comte de Crillon, by his friend, the French explorer Jean Francois de Galaup de la Perouse.
Mount Crillon lies about 20 miles (32 km) southeast of Mount Fairweather. It is near the southern end of the Fairweather Range, with only one 10,000 foot (3,050m) peak, Mount La Perouse, lying south of it. It is 10 miles (16 km) due east of the head of Lituya Bay, a small inlet of the Gulf of Alaska, which is itself part of the Pacific Ocean. The North and South Crillon Glaciers flow west from the peak toward Lituya Bay. The La Perouse Glacier flows south from the peak. The north side of the peak forms the head of the southern branch of the Johns Hopkins Glacier, which empties into Johns Hopkins Inlet, off of Glacier Bay. To the east of the peak lies the large icefield which forms the head of the Brady Glacier, the southernmost of the large glaciers of the Saint Elias Range.
Mount Crillon drops 9,000 feet (2,700 m) in less than 4 mi (6.4 km) on both its north and west faces. Due to its proximity to the ocean, it is often subject to harsh weather.
Mount Crillon is not climbed frequently, since it is an extremely challenging climb for its elevation. The first ascent was in 1934, by explorer Bradford Washburn and longtime editor of the American Alpine Journal H. Adams Carter. They climbed via the East Ridge above the Plateau, reaching the summit on 19 July 1934.
See also 
- Mountain peaks of Alaska
- Mountain peaks of North America
- Mountain peaks of the United States
- List of Ultras of North America
- List of Ultras of the United States
Michael Wood and Colby Coombs, Alaska: A Climbing Guide, The Mountaineers, 2001.