I don't think it's about making it a petrified forest or something.

Under the river's bed a petrified forest of 50,000 years ago has been discovered.

A large number of fossils and petrified forest have been found in the area.

The most notable example is the petrified forest in Arizona.

All I saw was a petrified forest from hell.

It is the only petrified forest in the eastern United States.

They reached the far edge of the petrified forest at nightfall, and made camp.

They moved carefully, as through a giant's petrified forest.

The town is located close to a petrified forest and the Twyfelfontein valley, known for its rock art.

And this petrified forest was only discovered around 1860, after his last reincarnation.