Moffitt Butte Tuff Ring, Oregon
Posted by: Groundspeak Premium Member Volcanoguy
N 43° 30.440 W 121° 26.393
10T E 626112 N 4818337
Quick Description: Moffitt Butte is a dissected basaltic tuff ring complex and is the result of the interaction of rising magma and meeting abundant groundwater.
Location: Oregon, United States
Date Posted: 6/18/2007 10:38:28 AM
Waymark Code: WM1PRJ
Published By: Groundspeak Premium Member RakeInTheCache
Views: 54

Long Description:
Moffitt Butte is a dissected basaltic tuff ring complex. The complex is elongate in the NE-SW direction and is about 8400 feet long and 5200 feet wide. The crater floor of Moffitt Butte is about 360 ft above the surrounding plain to the west. To the north, south, and east younger flows onlap the tuff ring. At the southwest end of the complex is smaller crater that was filled by a lava flow which issued from a dike on it’s northwest edge.
Moffitt Butte is not associated with a lake basin, as is the case for Fort Rock (WM1FY6) and Hole-in-the-Ground (WM1NRD). A line of tuff rings between here and the Fort Rock Basin are located roughly along what would have been the drainage route between Fort Rock and the La Pine Basin. Rising magma probably encountered permeable aquifers related to this drainage route.
Here’s a link to some additional information of tuff rings in central Oregon. (visit link)

There are limited views from Hwy. 31 and a road south of the butte. All roads near or on the butte are now closed to motorized use, so to really appreciated this feature and the views from it you must do some hiking.
Waymark is confirmed to be publicly accessible: yes

Parking Coordinates: Not Listed

Access fee (In local currency): Not Listed

Requires a high clearance vehicle to visit.: Not Listed

Requires 4x4 vehicle to visit.: Not Listed

Public Transport available: Not Listed

Website reference: Not listed

Visit Instructions:
No specific requirements, just have fun visiting the waymark.
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Recent Visits/Logs:
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Volcanoguy visited Moffitt Butte Tuff Ring, Oregon 6/19/2007 Volcanoguy visited it

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