| Nun Mountain | |
| Elevation Ft: | 4329 |
| Elevation Ref: | [1] [2] |
| Prominence Ft: | 879 |
| Prominence Ref: | [3] |
| Isolation Mi: | 1.59 |
| Parent Peak: | Peak 4402 |
| Part Type: | Protected area |
| Part: | Tongass National Forest |
| Country: | United States |
| State: | Alaska |
| Region: | Haines |
| Region Type: | Borough |
| Range: | Saint Elias Mountains Chilkat Range |
| Map: | USA Alaska |
| Label Position: | left |
| Map Size: | 270 |
| Coordinates: | 58.5041°N -135.2573°W |
| Coordinates Ref: | [4] |
| Topo: | USGS Juneau C-4 |
Nun Mountain is a 4329feet mountain summit in Alaska.
Nun Mountain is located 33miles northwest of Juneau in the Chilkat Range which is a subrange of the Saint Elias Mountains.[4] Precipitation runoff and glacial meltwater from the mountain's slopes drains to Lynn Canal. Although modest in elevation, topographic relief is significant as the summit rises over 4300abbr=offNaNabbr=off above tidewater of Lynn Canal in four miles (6.4 km) and the northeast face rises 3300abbr=offNaNabbr=off in one mile (1.6 km). The mountain's name was published by the United States Coast and Geodetic Survey in 1924 and the toponym has been officially adopted by the United States Board on Geographic Names.[4] The mountain is so named because of a fancied resemblance to a nun.[1]
According to the Köppen climate classification system, Nun Mountain is located in a tundra climate with cold, snowy winters, and cool summers.[5] Weather systems coming off the Gulf of Alaska are forced upwards by the mountains (orographic lift), causing heavy precipitation in the form of rainfall and snowfall. Winter temperatures can drop to 0 °F with wind chill factors below −10 °F. This climate supports a small unnamed glacier in the peak's northwest cirque.