"Petrified Forest" Top 5 Page for this destination Calistoga Things to Do Tip by TexasDave

These 6 ft in diameter trees fell and were covered in silica ash when Mt. St. Helena erupted ages ago. The ash that fell replaced the trees wood cells with silica and left these trees, some of which are over 100 feet long.
The first petrified tree was discovered in 1870 and people have been paying to see them ever since. Robert Louis Stevenson wrote about them in one of his books.
You walk around a trail to see the dozen or so trunks. There are signs explaining the process and a small gift shop with geological specimens from other parts of the world as well.
It probably won't take more than an hour to make the whole tour.

Currently Admission prices are:

Adults $8.00
Seniors (over 62) $6.00
Juniors (12 to 17) $6.00
Children (6 to 11) $3.00

Address: 4100 Petrified Forest Rd.
Directions: 6 miles West of Calistoga, going towards Santa Rosa
othercontact: www.petrifiedforest.org