Северный Сантандер
The Los Estoraques Unique Natural Area () is one of the smaller national parks, covering only , located in the Cordillera Oriental of Colombia in the Norte de Santander Department. The landscape is shaped by large brownstone pedestals and columns formed by thousands of years of erosion. The area is part of the Catatumbo River basin and elevation range from 1,450 to 1,900 meters above mean sea level. It was declared an "Área Natural Única" (Unique Natural Area) in 1998.