The Trees at This Northern California Forest Are Frozen in Time

The trees in Northern California’s Petrified Forest are quite literally frozen in time. This unique site in Calistoga near Napa Valley is the result of a violent volcanic explosion that occurred 3.4 million years ago. Here are some incredible things about the Petrified Forest.

The Petrified Forest is one of many pieces of evidence of California’s volcanic past. For more spots where you can spot volcanic ruins, check these out.