| Citadel Peaks | |
| Elevation Ft: | 8040 |
| Elevation Ref: | [1] |
| Prominence Ft: | 240 |
| Isolation Mi: | 0.46 |
| Parent Peak: | Porcupine Ridge (9,128 ft) |
| Location: | Glacier National Park Glacier County, Montana, U.S. |
| Map: | Montana#USA |
| Label Position: | bottom |
| Etymology: | Citadel (descriptive)[2] |
| Range: | Livingston Range Rocky Mountains |
| Coordinates: | 48.9288°N -113.9347°W |
| Topo: | USGS Porcupine Ridge |
| Type: | Arête[3] |
| Rock: | Sedimentary rock |
| Age: | Precambrian |
Citadel Peaks is a mountain ridge located in the Goat Haunt area of Glacier National Park, in Glacier County of the U.S. state of Montana.[4] This arête with a row of sharp points is part of the Livingston Range, and is approximately four miles east of the Continental Divide.[5] Neighbors include Olson Mountain, 2miles to the north, Mount Cleveland 4miles to the east, and Kootenai Peak 2.7miles to the south. Topographic relief is significant as Citadel Peaks rises over 3800abbr=offNaNabbr=off above Waterton Lake in less than two miles, and 3000abbr=offNaNabbr=off above Lake Janet in one mile. Precipitation runoff from the mountain drains to the south end of Waterton Lake. The first ascent of Citadel Spire, a major pinnacle on the ridge, was made in 1967 by Jerry Kanzler, Jim Kanzler, Ray Martin, and Clare Pogreba.[6] This geographical feature's name was officially adopted in 1929 by the United States Board on Geographic Names.[4] To the Pikuni people, Citadel Peaks is known as "Ataniawxis", meaning "The Needles".[7]
Based on the Köppen climate classification, Citadel Peaks is located in an alpine subarctic climate zone characterized by long, usually very cold winters, and short, cool to mild summers.[8] Temperatures can drop below −10 °F with wind chill factors below −30 °F.
Like the mountains in Glacier National Park, Citadel Peaks is composed of sedimentary rock laid down during the Precambrian to Jurassic periods. Formed in shallow seas, this sedimentary rock was initially uplifted beginning 170 million years ago when the Lewis Overthrust fault pushed an enormous slab of precambrian rocks 31NaN1 thick, 50miles wide and 160miles long over younger rock of the cretaceous period.[9]