Montaña de Timbaiba is a horseshoe-shaped volcanic cone, formed during the fissure eruption in the Middle Pleistocene. This building was constructed over a wind sand dune from the Pleistocene. There are two dune systems separated by a paleosol and by two pyroclastic deposits during the Timbaiba eruption. On the oldest dune there are fossils, such [...]

Located near the southern end of Risco de Famara, it is a river valley transformed into an interior endorheic basin after the eruption of the Guanapay volcano. The top sector is currently disconnected from the rest of the valley due to the ravine directly over Risco de Famara. In the endorheic area of the valley, [...]

A volcanic building formed in the Middle Pleistocene. In the process there was a series of hydromagmatic and strombolian episodes. Abundant dune enclaves. The crater is filled by sandy-clay deposits. In its flanks there is a high level of encalichamiento developed on the surface as a consequence of the erosion of the external pyroclastic levels [...]

This geosite is a clear example of the interference between the volcanic construction processes and the sedimentation of wind sands on the island of Lanzarote, which in this case has favoured the creation of convergent relief shapes, whose conic shape and pyroclastic materials on the surface, mainly lapilli, has caused for them to be interpreted [...]

The powerful lava flows of Los Ancones from the pleistocene volcanic cone of Montaña Corona, reached the old coastline and got into the sea, forming one of the most pronounced capes on the eastern coast of Lanzarote. Its situation on the shallow coast resulted in lava/water contact explosive processes, and the formation of spectacular pseudo-craters [...]

An excavated valley in the ancient deposits of the Macizo de los Ajaches. This is a graben-type valley, structurally controlled by normal faults in a NE-SW direction. The existence of these faults has influenced the direction of the eruptive fissure including the cones of Montaña Riscada and Caldera Gritana, since, once the power source of [...]

On the coast of Piedra Alta, a conglomeratic deposit has been observed with fossiliferous limestone cemented blocks located at 16-18 m s.n.m. which have been interpreted as a tsunami deposit. The origin of this tsunami is believed to be related to a mega-slide that occurred during the marine isotope 9.3 stage. The deposit rests on [...]

In the southeastern tip of Lanzarote, south of the steep slopes of Los Ajaches, a large area of very low slope is located. It is a marine abrasion platform formed during the Pliocene, on which a river network of dendritic character has formed. This rasa has an average altitude of about 40 m above sea [...]

Las Pilas ravine is located in the southern foothills of the Ajaches massif. This is a basin carved on lava flows and pyroclastic outcrops with radiometric ages of between 14.5 and 1.5 m, corresponding to Dominio de Ajaches. The main canyon basin called Las Pilas fits into its middle and final section on the marine [...]