Mt. Mazama (2)
Posted by: Groundspeak Premium Member Volcanoguy
N 42° 54.705 W 122° 08.763
10T E 569703 N 4751368
One of two identical geologic history signs about Mt. Mazama in the Rim Village area at Crater Lake N.P.
Waymark Code: WM7KPM
Location: Oregon, United States
Date Posted: 11/05/2009
Published By:Groundspeak Regular Member silverquill
Views: 6

Marker Name: Mt. Mazama
Marker Text: Imagine the impressive snow-capped mountain that once stood here. Successive volcanic eruptions over many thousands of years had built a cone that rose perhaps a mile above the present lake level. Like Mt. Rainier and Mt. St. Helens, it was one of the major volcanoes of the Cascade Range, and one of the most explosive -- Mt. Mazama.
About 7,700 years ago, a series of violent eruptions transformed Mt. Mazama. The volcano ejected large volumes of rock and ash high into the air. Then, great avalanches of hot, gas-charged rocks spilled down the slopes. Finally, the remaining upper portions of the volcano collapsed, creating the 6-mile-wide caldera that now holds Crater Lake.

The other copy of this sign is located at N 42° 54.681' W 122° 08.672'

Historic Topic: Geological

Group Responsible for placement: National Parks Service

Marker Type: Trail

Region: Willamette Valley

County: Klamath

State of Oregon Historical Marker "Beaver Board": Not listed

Web link to additional information: Not listed

Visit Instructions:

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Recent Visits/Logs:
Date Logged Log User Rating  
OregonTrailRanger visited Mt. Mazama (2) 11/27/2020 OregonTrailRanger visited it
ChapterhouseInc visited Mt. Mazama (2) 07/13/2013 ChapterhouseInc visited it
bachmann_andreas visited Mt. Mazama (2) 12/12/2011 bachmann_andreas visited it
Volcanoguy visited Mt. Mazama (2) 08/25/2009 Volcanoguy visited it

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