Porphyry Mountain
| Porphyry Mountain | |
|---|---|
 Northwest aspect of Porphyry Mountain featuring the National Creek Rock Glacier | |
| Highest point | |
| Elevation | 6,375 ft (1,943 m)[1] |
| Prominence | 1,675 ft (511 m)[1] |
| Parent peak | Bonanza Peak |
| Isolation | 3.42 mi (5.50 km)[2] |
| Coordinates | 61°28′16″N 142°49′50″W / 61.4710069°N 142.8304787°W[3] |
| Geography | |
  Porphyry Mountain Location of Porphyry Mountain in Alaska | |
| Location | |
| Parent range | Wrangell Mountains |
| Topo map | USGS McCarthy B-5 |
Porphyry Mountain is a prominent 6,375-foot (1,943 meter) mountain summit located in the
igneous rock.[3] The mountain's local name was reported in 1908 by the U.S. Geological Survey. On a clear day the summit of Porphyry Mountain offers views of Donoho Peak, Kennicott Glacier, and Mount Blackburn to the northwest, and Fireweed Mountain
to the west.
Climate
Based on the Köppen climate classification, Porphyry Mountain is located in a subarctic climate zone with long, cold, snowy winters, and cool summers.[4] Weather systems coming off the Gulf of Alaska are forced upwards by the Wrangell Mountains (orographic lift), causing heavy precipitation in the form of rainfall and snowfall. Temperatures can drop below −20 °C with wind chill factors below −30 °C. The months May through June offer the most favorable weather for viewing and climbing.
See also
References
- ^ a b "Porphyry Mountain, Alaska". Peakbagger.com. Retrieved 2020-02-12.
- ^ Porphyry Mountain, listsofjohn.com
- ^ a b "Porphyry Mountain". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2020-02-12.
- ISSN 1027-5606.
External links
- Weather forecast: Porphyry Mountain
- National Creek Rock Glacier: Fickr photo