Campo de Piedra Pómez, Protected natural area in Antofagasta de la Sierra, Argentina.

Campo de Piedra Pómez is a protected natural area in Catamarca province featuring expansive pumice stone formations across high-altitude terrain. The landscape displays pale-colored rock formations scattered across several kilometers of high plateau.

The pumice stone formations emerged about 100,000 years ago through volcanic activity from a nearby volcano. This geological process created the distinctive pale rock landscape visible today.

Local guides, known as baqueanos, laid out the first visitor routes here before the provincial authorities adopted them in their planning. Three circuits stand out: the Gigantes de Piedra Pómez, the Balcones de Laguna Purulla and La Lagunita Escondida. Until the end of 2015 visitor numbers remained very low because of the distance and isolation.

The best time to visit is outside the rainy season when trails are drier and easier to walk. Bring plenty of water and sun protection, as the high plateau offers little shade and the sun is intense.

The pumice field lies in the Puna de Atacama at 3,050 to 4,850 metres, and the low atmospheric pressure and thinner oxygen give the area its puna conditions. The nearby Blanco or Robledo volcano, whose crater can be visited southwest of the main sedimentation area, is considered the likely source of the pumice.