Urban exploration (urbex) is a fascinating activity that attracts a growing number of enthusiasts eager to discover abandoned places steeped in history. The Hautes-Alpes , located in the Provence-Alpes-Côte d'Azur region, offers a multitude of captivating urbex sites. This article presents five must-see sites in the Hautes-Alpes, each promising a unique and memorable experience.
1: Fort de la Croix de Bretagne
History and Significance: Built in the 19th century, the Fort de la Croix de Bretagne is one of the military fortifications erected to defend the region against potential invasions. Abandoned after the Second World War, it is now an iconic urban exploration site.
Site Features
- Architecture: Military buildings, barracks and observation posts.
- State of disrepair: Some parts are in ruins, but others remain accessible.
- Access: Access requires a hike, but the trails are marked.
2: The Old Serre-Ponçon Hydroelectric Plant
An Industrial Relic The former Serre-Ponçon hydroelectric plant is an abandoned industrial site, offering a unique atmosphere with its vast machine rooms and deserted infrastructure.
Site Features
- Infrastructure: Production workshops, turbines and pipelines.
- State of disrepair: Largely in ruins, some structures remain accessible.
- Access: Access is restricted, requiring discretion and caution.
3: Picomtal Castle
An Abandoned Historic Site: Picomtal Castle , dating back to the 13th century, is a magnificent building offering a mysterious and captivating atmosphere. While some parts are still inhabited, other sections are abandoned, providing a perfect setting for urban exploration.
Site Features
- Architecture: Towers, ramparts and vast medieval halls.
- State of disrepair: Some parts are well preserved, others are in ruins.
- Access: Access is relatively easy, but caution is advised.
4: The Escartons Sanatorium
An Abandoned Treatment Site: The Escartons sanatorium , built at the beginning of the 20th century, was intended to house patients suffering from tuberculosis. Closed in the 1970s, this site is now abandoned but remains a fascinating place to explore.
Site Features
- Architecture: Hospital buildings, large treatment rooms and dormitories.
- State of disrepair: Some parts are well preserved, others are in ruins.
- Access: Access is restricted, but explorers often find ways to enter discreetly.
5: The Old Montgenèvre Railway Tunnel
A Railway Relic The old Montgenèvre railway tunnel is a fascinating site for urban exploration with its deserted railway infrastructure and unique atmosphere.
Site Features
- Infrastructure: Tunnel, railway lines and ancillary buildings.
- State of disrepair: Largely in ruins, some structures remain accessible.
- Access: Access requires caution and preparation, as some areas may be unstable.
Conclusion
The Hautes-Alpes is a department rich in history and fascinating abandoned sites for urban explorers. From the Fort de la Croix de Bretagne to the former Serre-Ponçon hydroelectric plant, passing by the Château de Picomtal and the Escartons sanatorium, each location offers a unique adventure. By respecting safety rules and property rights, you can enjoy memorable explorations and discover the hidden treasures of this department. Happy exploring!




