Porphyry Mountain
Porphyry Mountain rises to 1,943 m in Alaska. Atna Peaks stands 4,225 m to the northwest, 23 miles off. The nearest named place is St. Ellias Apline Guides Kennecott Mill Tour, a attraction 1.9 miles away. 31 named places lie within 25 miles, 24 of them named summits.
The story
Porphyry Mountain is a prominent 6,375-foot (1,943 meter) mountain summit located in the Wrangell Mountains, in the U.S. state of Alaska. The peak is situated in Wrangell-St. Elias National Park and Preserve, immediately southeast of Kennecott, 4 mi (6 km) northeast of McCarthy, and, 5 mi (8 km) northwest of Sourdough Peak. Precipitation runoff from the mountain drains into tributaries of the Nizina River, which in turn is part of the Copper River drainage basin. The peak is notable for a rock glacier on its north slope. The mountain was so named because it is largely composed of porphyry, which is a very hard igneous rock. 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.
From Wikipedia, CC BY-SA 4.0.
Wikidata Q49063450, referenced by the OpenStreetMap record.
What the record says
- Elevation
- 1943 m
How to reach it
31 named places within 25 miles
- Bonanza Peak: 3.4 mi
- Green Butte: 3.5 mi
- Sourdough Peak: 5.1 mi
- Donoho Peak: 7.6 mi
- Fireweed Mountain - Central Peak: 9.6 mi
- St. Ellias Apline Guides Kennecott Mill Tour: 1.9 mi
- Kennicott Wilderness Guides: 2.0 mi
- Kennecott Mines National Historic Landmark: 2.1 mi
- Assay ruins: 2.1 mi
- Saw mill ruins: 2.1 mi
- McCarthy-Kennicott Historical Museum: 3.9 mi
- Chitistone Falls: 22.2 mi
Other summits around it
The highest named summits within 25 miles of Porphyry Mountain. Elevation from each summit’s own record; bearing measured between the two coordinates.
| Summit | Bearing | Elevation | Distance |
|---|---|---|---|
| Atna Peaks | NW 326° | 4,225 m | 23.3 mi |
| Regal Mountain | N 356° | 4,220 m | 18.9 mi |
| Parka Peak | NNW 330° | 3,993 m | 22.2 mi |
| Rime Peak | NW 321° | 3,866 m | 24.6 mi |
| Castle Peak | WNW 294° | 3,070 m | 22.1 mi |
| Andrus Peak | SE 133° | 2,480 m | 18.3 mi |
| Mount Baldwin | ENE 63° | 2,462 m | 24.2 mi |
| Mount Holmes | SE 135° | 2,347 m | 16.1 mi |
When to go
Light through the year
| Date | Sunrise | Golden hour | Sunset |
|---|---|---|---|
| March equinox | 07:33 | 18:49 | 19:46 |
| June solstice | 03:49 | 21:50 | 23:19 |
| September equinox | 07:16 | 18:36 | 19:33 |
| December solstice | 09:50 | — | 15:11 |
Local time (America/Anchorage).
Climate normals
Months averaging 50–80 °F: Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °F | -2 | 10 | 18 | 35 | 47 | 54 | 57 | 54 | 44 | 29 | 10 | 2 |
| Precip in | 0.9 | 1.1 | 0.4 | 0.3 | 0.9 | 1.6 | 2.4 | 2.6 | 2.6 | 2.2 | 1.5 | 1.1 |
1991–2020 U.S. Climate Normals, NOAA NCEI — Mccarthy 3 SW, 7 mi away.
Inside the official boundary of Wrangell–St. Elias National Park. Quietest months by visitation: Jan and Dec; busiest: Jul.
NPS visitation statistics, monthly averages 2021–2025 (2020 excluded).
Where this comes from
Location and category confirmed against OpenStreetMap.
OpenStreetMapWikipediaWikidataOpenStreetMap element node/764140397
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