Monte San Petru, Mountain summit in Alta Rocca, Corsica, France.

Monte San Petru is a mountain in the Monte Incudine massif of Corse-du-Sud, on the territory of Petreto-Bicchisano, reaching 1,400 metres. It is the highest point of the Viggiano micro-region. Its rounded summit is covered with pale grey and light brown boulders, with a jagged outcrop of larger rocks near the top and low dry scrub between the stones. A narrow trail of lighter dirt weaves upward through the rocks.

On 1 December 1981 the Inex-Adria Aviopromet MD-81 of flight 1308 crashed on Monte San Petru, killing all 180 people on board. A chapel was later installed on the mountain in memory of the victims. The mountain lies in the Monte Incudine massif above Petreto-Bicchisano and is a designated natural zone of ecological, faunistic and floristic interest.

The mountain lies in the commune of Petreto-Bicchisano and is the highest point of the Viggiano micro-region. A chapel was installed on the mountain in memory of the 180 occupants of Inex-Adria Aviopromet Flight 1308, a Yugoslav MD-81 that crashed here on 1 December 1981. The site is also a designated natural zone of ecological, faunistic and floristic interest.

The hiking trail starts from the Col de Saint-Eustache parking area at 995 meters elevation and follows a clearly marked path. The route covers approximately 9 kilometers of mountain terrain that requires solid footing and steady effort.

On 1 December 1981, Inex-Adria Aviopromet Flight 1308, a McDonnell Douglas MD-81 flying from Ljubljana to Ajaccio, struck the mountain and all 180 people aboard died. A chapel was later installed on Monte San Petru in memory of the victims.