Petrified Forest



Petrified trees


Grey Zorro

Location: It is located in the northeast of Santa Cruz province, in the Puerto Deseado Department. The nearest village is Jaramillo. From Jaramillo to the Natural Monument there is a 135 km distance.

Surface: It has a 13.700 hectares surface.

Created: It was created in 1954.

Vegetation:150 millions of years ago, the protected area´s climate was very wet. There were dense forests with big trees. Some important species were the “ pehuenes” or “araucarias”. In the cretacic period beginning, the volcanic eruptions –that coincided with the mountain chain raising- buried a big part of the patagonic territory, with ashes and lava. A lot of these forests were petrified. They conform the MN Bosques Petrificados (Bosques Petrificados Natural Monument).

Animals: grey fox, zools, chingolos, agachonas, comesebos, piche patagónico, choique or ñandú petiso.


Characteristics: Due the need of protecting petrified forests, the Bosques Petrificados Natural Monument was created in 1954. It is located in the northeast of Santa Cruz province, in the Puerto Deseado Department. The nearest village is Jaramillo. From Jaramillo to the Natural Monument there is a 135 km distance.

Nowadays, the MN Bosques Petrificados (Bosques Petrificados Natural Monumen)t has a 13.700 hectares surface. The National Parks Administration acquired two adjacent farms, and is negotiating to include them in the protected area. Bosques Petrificados Natural Monument belongs to the patagonic steppe eco-region. Its climate is cold and dry, with winter rains lower than 400 millimeters and strong west winds. The summers are dry. There are permanent frosts.

Rest of what once was a green forest

Argentina National Parks

Santa Cruz Province