The Rock of Guatapé, or Piedra del Peñol, is a monolith 220 meters high located in Guatapé (Antioquia, Colombia). Piedra de El Peñol, composed of quartz, feldspar and mica, was first climbed on July 16, 1954 by a local resident, Luis Eduardo Villegas Lopez. So far, the stone still belongs to the Villegas family: you can now access its top by climbing 740 steps built into the monolith. In 1988, in an alliance between the owner of the rock and the mayor of Guatapé, they began to paint the name GUATAPÉ in the rock; however, since the stone is part of the territory of Peñol and continues to be part of its identity, the commune was able to stop it according to Law 23 of 1973, according to which it is not possible to paint or cut a tourist place Natural. The stone has become a tourist attraction of the place, near the dam that surrounds it. Thousands of people from all over the world visit the place. The depressurising caused is a mechanical relaxation of a buried crystalline rock mass which later, due to erosion, emerges. The loss of confining pressure means a drop in the confining forces and, in response, an increase in the volume of mass already discernible, so that the distillation forces form the dome, such as the Sugar Loaf in Rio de Janeiro. This rock structure is part of the Batolito de Antioquia.