More than three hundred statues have been found, most of them in an area delimited by the basins of the Magdalena, Bordones, Mazamorras and Sombrerillos rivers and the peaks of the Colombian Massif. The blocks in which they were carved are volcanic tuffs and lava andesites, some of large dimensions, up to more than four meters high and several tons in weight. With the exception of the neighboring region of Tierradentro (Cauca) such monumental sculpture is found in no other area of Colombia.