Monte Stello, Mountain summit in Haute-Corse, France.

Monte Stello is a mountain summit in Haute-Corse rising to 1,306 metres, the second highest point of the Monte Stello Massif, which forms the backbone of Cap Corse. Its upper slopes are bare grey and pale tan rock broken into loose slabs and scree, with darker outcrops near the crest, while lower slopes are covered in low green vegetation dotted with scattered stones. The summit is composed of Cretaceous ophiolites formed during the Alpine orogeny.

The mountain formed during the alpine mountain-building process millions of years ago when tectonic movements brought different rock formations together. These geological processes created the characteristic ophiolite composition that remains visible today.

Monte Stello lies at the meeting point of the communes of Olcani, Olmeta-di-Capocorso and Brando, and its Corsican name is U Stellu. The trail from Pozzo crosses maquis shrubland, the low scrub that covers the slopes below the bare rock of the summit.

Hiking trails from the village of Pozzo lead upward through maquis shrubland to reach the summit, taking about six to seven hours for the ascent. The route is steep and crosses uneven terrain, so good physical fitness is needed.

Twenty to thirty metres below the summit stands a dry-stone shelter roofed with lauze slabs, easy to miss beside the telecommunications relay building that crowns the peak. The mountain is built of Cretaceous ophiolites, and the summit relay marks the top of the ridge.