El Infiernito (Spanish for "The Little Hell"), is a pre-Columbian archaeoastronomical site located on the Altiplano Cundiboyacense in the outskirts of Villa de Leyva, Boyacá, Colombia.

The first description of the site was made in 1847 by the Colombian army geographer Joaquin Acosta, who reported 25 stone columns, half-buried in the Monquirá Valley.

[3] The findings were studied by Alexander von Humboldt who believed that the site could be used to anticipate astronomical phenomena such as solstices and equinoxes, as indicated by the alignment of the stones with the sun and moon.

Three distinct stratigraphic levels can be observed, showing an early inhabitation of the Altiplano Cundiboyacense: The first stratum is rich in animal remains, vegetal ashes, red ochre, incienso and resins.

[citation needed] Other lithic monuments of the Muisca culture exist in Sutamarchán, Tunja, Ramiriquí, Tibaná and Paz de Río among other locations.