This is the only cave site recognized as a national monument in Costa Rica. Its engravings decorate a high and wide wall composed of white ignimbrite. At the entrance to the decorated sector, there are four large rocks, two of which have motifs. Although there are similar cliffs on the banks of the Cabuyo River, only this one is decorated.

It has more than 250 motifs that are organized in groups of geometric shapes, anthropomorphic figures (such as heads), and zoomorphic figures (such as lizards, birds, scorpions, and fish).

Some of the heads have a headdress (possibly feathered) that corresponds to the paintings on ceramic ware of the Mora Polychrome group (Guabal variety). However, the parallel wavy lines, the opposite spirals and the isosceles crosses organized in "chessboards" recall the decorations of early ceramics classified in the Galo, Carrillo Polychrome and Bocana Incised groups.