Petrified Tree - Yellowstone National Park
Posted by: 
Volcanoguy
N 44° 54.933 W 110° 26.309
12T E 544321 N 4973722
A geologic history sign at the start of the trail up to the Petrified Tree in Yellowstone National Park.
Waymark Code: WMDA2P
Location: Wyoming, United States
Date Posted: 12/11/2011
Views: 19
“This petrified redwood is a clue to a warmer, damper, more violent Yellowstone landscape. Anatomically the trunk is indistinguishable from present-day redwoods in California.
When a chain of volcanoes erupted here in Eocene times 50 million years ago, they triggered massive landslides into mountain and valley streams. The rolling mix of ash, water and sand buried whole forests. Before the trees could rot, abundant silica in the volcanic flow plugged living cells, creating 'forests of stone'.”
Marker Name: etrified Tree - Subtropical Yellowstone
Marker Type: Rural Roadside
Addtional Information:
Group Responsible for Placement: National Park Service
Web link(s) for additional information: [Web Link]
Date Dedicated: Not listed
Marker Number: Not listed
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Visit Instructions:
Please post a photo of you OR your GPS at the marker location. Also if you know of any additional links not already mentioned about this bit of Wyoming history please include that in your log.