#915:  Petrified Forest

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4100 Petrified Forest Rd, 5 mi NW of Calistoga





State Plaque


Site is privately owned and operated. Access limited to operating hours.

From the Guidebook:

The petrified forest, historically and scientifically significant as the state's only petrified forest dating from the Eocene period, is unique in its size, scope, and variety of petrification. Discovered in 1870, the forest is about a mile long by half a mile wide.

From the plaque:

The petrified forest, dating from the Eocene period, is the only know example of a petrified forest in California. Its size, scope and variety of petrification is unique in the world. Opalized wood, obsidian, quartz crystal, petrified coral and fossilized insects number among its wonders.

Plaque placed by the State Department of Parks and Recreation in cooperation with Ollie Orre Bockee, Jeanette Orre Hawthorne, and Davida Conway, August 19, 1978.

2009 David Schmitt