The geology of Menorca

One of the things that most surprises the first-time visitor to Menorca is the tremendously varied landscape for such a small island. Although human activity over the centuries has played a part, the fundamental factor behind this marvellous variety is the extraordinary geodiversity of the island. The rock formations, which include the oldest of the Balearic islands, span some 400 million years.

Updated on October 26, 2026

Practically all of Menorca is formed by sedimentary rocks. However, these have been formed in very distinct ways which correspond, broadly speaking, to four different geological periods. These distinct origins have produced rock formations which are strikingly different in morphology, composition and colour.

The remarkable geology of the island has given rise to some of Menorca’s most dramatic landscapes. On just a short tour we could take you from the austere outcrops of dark rocks, towering grey cliffs and intricately carved red sandstone hills and coves of the north to the impressive steep white limestone ravines and amphitheatre-like quarries of the south.

Two Menorcas: Tramuntana and Migjorn

In general terms the island divides into two large zones. In the north, the Tramuntana, there are old rocks — including the oldest in the Balearic Islands — a rolling relief and an indented coast, with slates and sandstones in dark and reddish tones. In the south, the Migjorn, is a platform of younger limestone, flat and cut by ravines that end in coves of white sand.

Marès and the quarries

Marès is a pale, easily worked limestone that has been used for centuries to build houses, walls and churches. Quarrying has left the quarries you can see in the south, whose vertical walls recall amphitheatres; some, such as those at s’Hostal in Ciutadella, have been restored as places to visit.

Landscapes to explore

The reddish cliffs and coves of the north, around Cavalleria and Pregonda.
The ravines of the south, such as the Algendar ravine, which reaches the sea at Cala Galdana.
The caves cut into the cliffs at Cales Coves, where rock and history mix: see Talayotic Menorca.

To see the geology on foot, the Camí de Cavalls crosses both worlds, and the beaches change colour with the rock of each coast.