Earth:Atna Peaks

Atna Peaks
The Nabesna Glacier, with Mount Blackburn at right; Atna Peaks is the twin summit left of center and Parka Peak is the icy summit at left
Highest point
Elevation	13,860 ft (4,220 m)
Prominence	2,160 ft (660 m)
Isolation	3.7 mi (6.0 km)
Listing	North America highest peaks 68th US highest major peaks 51st Alaska highest major peaks 15th
Coordinates
Geography
Location	Valdez-Cordova Census Area, Alaska, United States
Parent range	Wrangell Mountains
Topo map	USGS McCarthy C-6
Geology
Mountain type	Eroded stratovolcano or shield volcano
Last eruption	Unknown
Climbing
First ascent	Alex Bittenbinder, Don Stockard, and Vin Hoeman, 1965
Easiest route	glacier climb

Atna Peaks is an eroded stratovolcano or shield volcano in the Wrangell Mountains of eastern Alaska. It is located in Wrangell–Saint Elias National Park about 6 miles (9.7 km) east of Mount Blackburn, the second-highest volcano in the United States, and just south of the massive Nabesna Glacier. Because the mountain is almost entirely covered in glaciers, no geological studies have been done, but published references state and the geological map shows that the mountain is an old eroded volcanic edifice.

The mountain's main summit is 13,860 feet (4,225 m), making it the second-highest thirteener (a peak between 13,000 and 13,999 feet in elevation) in Alaska. The second summit is located about 0.6 miles (0.97 km) to the east, reaching over 13,600 feet (4,100 m), and another named summit, 13,280 ft (4,048 m) Parka Peak, is about 1.6 miles (2.6 km) further east across a glacier-covered saddle. The steep rocky south faces of these three peaks form part of the cirque of the Kennicott Glacier, which flows southeast over 20 mi (32 km) to just above the town of McCarthy.

Atna Peaks was named in 1965 by the first ascent party from the Mountaineering Club of Alaska, because the "peaks are at the edge of the Copper River drainage and the old Indian name for that river was Atna."

Looking north at Parka Peak centered with Atna Peaks to left reflected in a lake near Donoho Peak

See also

• List of mountain peaks of North America
  • List of mountain peaks of the United States
    • List of mountain peaks of Alaska
• List of volcanoes in the United States

References

• Richter, Donald H.; Danny S. Rosenkrans; Margaret J. Steigerwald (1995). Guide to the Volcanoes of the Western Wrangell Mountains, Alaska. USGS Bulletin 2072. http://www.nps.gov/wrst/naturescience/guide-to-the-wrangell-volcanoes.htm. 
• Winkler, Gary R. (2000). A Geologic Guide to Wrangell—Saint Elias National Park and Preserve, Alaska: A Tectonic Collage of Northbound Terranes. USGS Professional Paper 1616. ISBN 0-607-92676-7. http://pubs.usgs.gov/pp/p1616/. 
• Richter, Donald H.; Cindi C. Preller; Keith A. Labay; Nora B. Shew (2006). Geologic Map of the Wrangell-Saint Elias National Park and Preserve, Alaska. USGS Scientific Investigations Map 2877. http://pubs.usgs.gov/sim/2006/2877/.