Zona Arqueológica de Morro Grueso

Zona Arqueológica de Morro Grueso is a protected archaeological site in the municipality of Adeje, Tenerife, officially listed as a cultural heritage asset. It occupies a narrow, elongated basaltic ridge running north to south between two ravines, the Barranco del Agua and the Barranco de Fañabé, descending toward the coastal neighbourhood of Fañabé.

What can be found at the site?

Morro Grueso is best known as a station of rock engravings, carved into the basaltic outcrops scattered along the length of the ridge. Alongside the engravings, the surface preserves the remains of dry-stone structures with a circular or oval layout — most likely old shepherd huts and livestock pens, a type of construction typical of the traditional pastoral economy practised in Tenerife's highlands.

A particularly notable feature is a small cave with a preserved stratigraphic fill. According to available records, excavations there uncovered necklace beads made by the island's indigenous population, together with mollusc remains, leading researchers to suggest the cave may have served a funerary function. Across the surface of the site, fragments of lithic material — including obsidian — and ceramic remains are also visible, pointing to sustained use of the area by the island's early inhabitants.

Why is the site protected?

Zona Arqueológica de Morro Grueso is designated as a Bien de Interés Cultural (Asset of Cultural Interest) under Spain's historical heritage law of 1985 (Ley 16/1985), with its precise boundaries within the municipality of Adeje set out in Decree 60/2002 of the Canary Islands government, dated 6 May 2002. This legal status means the area receives special protection, and any earthworks or construction within its limits require authorisation from the relevant heritage authorities.

The site forms part of a broader archaeological landscape in southern Tenerife, where mountain slopes and ridges have preserved numerous traces of settlement and ritual activity left by the island's pre-conquest population.

How to reach Morro Grueso?

The site sits right next to Fañabé, a well-known tourist neighbourhood within Costa Adeje, one of Tenerife's most popular resort areas. The ridge on which the archaeological zone extends can be reached on foot from the coastal built-up area, following the valley upward between the two ravines mentioned above. Because of its protected heritage status, visits should be limited to observation from marked paths, without disturbing the ground or any surviving structures.

Frequently asked questions

What are the rock engravings found at Morro Grueso? They are carved images made on the basaltic rock surfaces by Tenerife's early inhabitants, a form of rock art characteristic of several archaeological sites across the island.

Can visitors move freely around the site? The area is legally protected as a cultural heritage asset, so visits should respect the surviving structures and avoid disturbing the ground surface.

What archaeological finds are associated with this site? Records mention necklace beads and mollusc remains found inside a small cave, as well as obsidian fragments and pottery remains visible on the surface across the site.

Where exactly is Morro Grueso located? On a mountain ridge between the Barranco del Agua and Barranco de Fañabé ravines, directly above the Fañabé neighbourhood in the municipality of Adeje.