Cueva de las Manos probably made by submerging their hunting bolas in ink, and then throwing them up. The binder is unknown but the mineral pigments include iron oxides, producing reds and purples; kaolin, producing white; natrojarosite, producing yellow; and manganese oxide, which makes black. Carlos J. Gradin has studied the cave. Cueva de las Manos has been listed as a World Heritage Site since 1999. Cueva de las Manos Cueva de las Manos (Spanish for Cave of Hands) is a cave or a series of caves located in the province of Santa Cruz, Argentina, south of the town of Perito Moreno. It is
Las Caldas cave Las Caldas cave Las Caldas Cave and the surrounding partial nature reserve ("Reserva Natural Parcial de la Cueva de las Caldas") is a protected area covering 45 hectares within the Nalón Valley in the Municipality of Oviedo in the vicinity of the towns of La Piñera and Las Caldas. The cave itself has a length of about 600 m and has three entrances. The main cavity is around 5 m high and contains a subterranean river. The cave has no particular geological significance but it is important for the wildlife and archaeological sites from the Solutrean and Magdalenian periods located