Monte Buia stands in between the hills Faeit and Campeon and the Tagliamento River. Due to its strategic position and the height of 324 metres, the decision was reasonable that four 149-mm guns be emplaced on the top of the hill and directed towards the pre-Alpine valleys. A wall as a protection against the enemy fire was built on the platform where the guns were emplaced. Recesses were made in the wall to store small stocks of ammunition intended for immediate use. From here, it is possible to see the nearby fort Osoppo and the first alpine summits.
A trail leads to three caves that served as an ammo depot. It is still possible to read the inscriptions deposito cartocci (bullet depot), deposito proietti (shell depot) and riservetta (ammo reserve). Today, the entrances are secured, as they are used for electricity supply by the Enel enterprise.
From the A23 motorway, take the exit for Gemona del Friuli, continue left towards Buja–San Daniele del Friuli. At the junction, turn to the provincial road SP49, turn left towards Buja and continue for 800 metres until you reach Via Mulini on your left. Follow the signposts for San Floreano. In the centre, turn left to Salita di Monte and continue to the top.