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 | |
| Elevation | 7,021 ft (2,140 m) |
| Prominence | 6,300 ft (1,900 m) |
| Listing | |
| Coordinates | 58°51′36″N 153°31′59″W / 58.86000°N 153.53306°W |
| Geography | |
Mount Douglas Alaska | |
| Location | Katmai National Park and Preserve, Alaska, U.S. |
| Parent range | Aleutian Range |
| Topo map | USGS Afognak D-5 |
| Geology | |
| Mountain type | Stratovolcano |
| Volcanic arc/belt | Aleutian Arc |
| Last eruption | Holocene |
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]
See also Edit
References Edit
- ^ "Douglas". Global Volcanism Program. Smithsonian Institution.
Other Sources Edit
- Volcanoes of the Alaska Peninsula and Aleutian Islands-Selected Photographs
- Mt. Douglas - Alaska Volcano Observatory