Pumice Desert
Posted by: Groundspeak Premium Member Volcanoguy
N 43° 01.678 W 122° 07.166
10T E 571741 N 4764296
Geologic history sign at the Pumice Desert Viewpoint along the North Entrance Road.
Waymark Code: WM7M5X
Location: Oregon, United States
Date Posted: 11/07/2009
Published By:Groundspeak Regular Member silverquill
Views: 6

Marker Name: Pumice Desert
Marker Text: The pumice deposits you are now standing on are the product of Mt. Mazama, an explosive volcano that collapsed to form the Crater Lake caldera. Mazama stood about 6 miles (9.7 km) south of here (to your left).
About 7,700 years ago Mt. Mazama erupted torrents of seething, red-hot pumice and other volcanic rocks. These glowing avalanches raced down the slopes and flooded the valley that lay here with deposits over 100 feet (30 m) deep.
Even after thousands of years, few trees have become established on the Pumice Desert. There is ample water under the surface, but deficiencies in the soil limit plant growth. Many more years will pass before the surrounding lodgepole pines transform the desert to a forest.

Historic Topic: Geological

Group Responsible for placement: National Parks Service

Marker Type: Roadside

Region: Willamette Valley

County: Klamath

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

Web link to additional information: Not listed

Visit Instructions:

Include your thoughts and observations pertaining to this location and your visit. Provide any additional history that you are aware of that pertains to this location. If the marker commemorates a historic building tell us what it is used for now or share with us the circumstances of an earlier visit to bring this locations history to life.

Please upload a favorite photograph you took of the waymark. Although visiting this waymark in person is the only thing required of you to receive credit for your visit, taking the time to add this information is greatly appreciated.

Be creative.

Search for...
Geocaching.com Google Map
Google Maps
Bing Maps
Nearest Waymarks
Nearest Oregon Historical Markers
Nearest Geocaches
Create a scavenger hunt using this waymark as the center point
Recent Visits/Logs:
Date Logged Log User Rating  
TrekkingTurtles visited Pumice Desert 05/06/2023 TrekkingTurtles visited it
OregonTrailRanger visited Pumice Desert 11/27/2020 OregonTrailRanger visited it
Volcanoguy visited Pumice Desert 08/25/2009 Volcanoguy visited it

View all visits/logs