The petrified wood is the transmutation of the organic substance into a rock through a process that can be described as follows:
At the beginning of the Tertiary Era , the Andes Range starts raising and prevents the currents of humid air from the Pacific to the Atlantic from passing.
There are volcanic eruptions simultaneously and the ashes as well as the lava spread giving way to the slow process of organic transformation - absorption, impregnation, substitution and mutation of the molecular nature keeping its exterior appearance.
The outcrops of these extraordinary petrified trunks, the Moonlike landscape and the surrounding hills with varied colours allow you to observe the different geographical strata which make this place a unique attraction that cannot be missed.
The Petrified Wood Provincial Park of Sarmiento has Forest Rangers, guides and other services. The entrance costs $5 and $3 to students and retired people.
It is open from 8.00 am to 8.00 pm from October to March, and from 9.00 am to 6.30 pm from April to September.
At the moment, there is an integral plan in which all the institutions interested in the protection and exploitation of the park participate.