Monti Rossi, Volcanic summit near Nicolosi, Sicily, Italy.

Monti Rossi are two pyroclastic cones on the slopes of Mount Etna, north of Nicolosi in Sicily, whose highest point reaches 949 metres above sea level with a topographic prominence of 116 metres. They formed during the 1669 eruption, and a tall metal cross dating from 1928 stands on the secondary cone.

Monti Rossi were formed by a major eruption of Mount Etna in 1669, one of the most destructive in recorded history, which sent lava flows all the way to the city of Catania. The eruption lasted several months and left behind the twin-crater formation visible today.

The reddish rocks that give this place its name are clearly visible from the walking paths, standing out against the darker lava of the surrounding slopes. Visitors often stop here to look at the color up close, which shifts from deep red to almost black depending on the light.

Marked trails from Nicolosi lead up to the slopes, and the walk takes roughly two to three hours depending on the path chosen. The terrain is steep and the loose cinder underfoot can be slippery, so solid footwear is a good idea before setting out.

On the secondary cone stands a tall metal cross dating from 1928, a landmark visible from the paths around Nicolosi. The two cones were built within days during the 1669 eruption and were first called by locals "Monti della ruina", the mountains of ruin.