Where does the petrified wood sold in the rock shops outside the park come from? Petrified Forest National Park protects less than 20% of the petrified wood in northeastern Arizona. Petrified wood is also found on state land, Bureau of Land Management land, the Navajo Nation, and privately owned property. The wood being sold in regional gift shops comes from the private property, from which it can be collected by the owner, or those with permission from the owner, and sold.