Apennine Mountains

The Apennine Mountains (also known as Apennines) are a mountain range consisting of parallel smaller chains extending 750 miles (1,200 km) along the length of peninsular Italy.

The House of Hades
The earth spirits, Ourae, attack the Argo II from the mountains which causes the six aboard the ship not be able to pass the mountains. For the past two days they have tried to cross the mountain but have been unsuccessful.