Fort du Mont
Fort du Mont is a military fortress at an elevation of 981m (3,218ft) above the sea level, located in the Savoie department in the Rhône-Alpes region in south-eastern France.
The road to the fortress, also known as fort Daumas, is asphalted. It’s called D105. It’s asphalted but really narrow. The fortress was built between 1877 and 1881.