Petrified Log - Menlo Park, California
Posted by: 
Volcanoguy
N 37° 27.355 W 122° 10.221
10S E 573376 N 4145773
Section of a petrified log at the USGS Campus in Menlo Park, California.
Waymark Code: WMADGM
Location: California, United States
Date Posted: 12/31/2010
Views: 4
This petrified log is one example of a series of large blocks of rocks from various locations, which are on display around the USGS Campus in Menlo Park. There is a self-guided tour of the campus available at the visitor center.
Text of Sign: “This petrified log was collected west of Rawhide, Nevada from Tertiary Volcanogenic sediments of probable Miocene age (5-12 million years ago). Tree rings indicate that the coniferous tree lived for about 180 years.”
Type of Display: Geological
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