Mount Douglas (Alaska)

Mount Douglas is a stratovolcano located south of Kamishak Bay, near the northeasternmost part of the Alaska Peninsula. It lies in the Katmai National Park and Preserve in Kenai Peninsula Borough. The mountain was officially named in 1906 after nearby Cape Douglas based on a 1904 report by USGS geologist G. C. Martin. The Alaska Volcano Observatory currently rates Douglas as Level of Concern Color Code Not Assigned.

Mount Douglas
Crater lake at the summit, June 1990
Highest point
Elevation7,021 ft (2,140 m)
Prominence6,300 ft (1,900 m)
Listing
Coordinates58°51′36″N 153°31′59″W
Geography
Mount Douglas
Alaska
LocationKatmai National Park and Preserve, Alaska, U.S.
Parent rangeAleutian Range
Topo mapUSGS Afognak D-5
Geology
Mountain typeStratovolcano
Volcanic arc/beltAleutian Arc
Last eruptionHolocene
For other mountains by this name, see Mount Douglas.

The volcano has a warm and highly acidic crater lake approximately 160 m (525 ft) wide. In 1982, the lake had a temperature of 21 °C and a pH of 1, and temperatures of 114-118°C were measured in 1991. At the north flank of the volcano unglaciated and relatively uneroded lava flows are found. The last eruption is not known, but probably occurred during the Holocene.[1]

Map showing volcanoes of Alaska.

See also

References

  1. "Global Volcanism Program | Douglas". volcano.si.edu. Retrieved 2018-06-11.

Other Sources

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