Cerro Piergiorgio
Cerro Piergiorgio is a mountain at the border between Argentina and Chile, on the Chilean side its on the Chaltén Mountain Range Natural Site in the Bernardo O'Higgins National Park. Its altitude is 2719 m. It is in Patagonia, in the Chilean Magallanes and Antártica Chilena region and in the Argentinian province of Santa Cruz, near the Argentinian village of El Chaltén.
On the Chilean side, it is located in the Bernardo O'Higgins National Park, being its eastern side in the Chaltén Mountain Range Natural Site, which is an integral part of the park.
Previously, Chile claimed the entire mountain, but after the arbitration decision of the dispute of the Desert Lagoon in 1994, the limit was defined in the hill, being recognized as a binational landmark by both countries.