Spain Los Azulejos

According to the Geological Map of Spain (Mapa Geológico de España), "bordering the fracture zone, which marks the edge of the great Caldera de Tejeda, are several levels of coloured tuffs, indicative of hydrothermal activity associated with the fault that limits the caldera. These brightly coloured altered materials are known locally as "azulejos" and are very fine rhyolitic vitroclastic tuffs, with some small feldspar phenocrysts.

By car. Parking near by.