Strada dell’Assietta Western Circuit
WWI alpine battlefield ridge road
The Strada dell’Assietta traces a 35-kilometer ridgeline between the Susa and Chisone valleys, following the exact route where French and Italian alpine troops faced off during World War I. This military road was built in 1928 to supply border fortifications and still passes through abandoned bunkers, artillery positions, and mountain refuges at elevations exceeding 2,500 meters. The technical challenge lies in exposed sections where the narrow gravel track hugs steep mountainsides with no guardrails, while weather can change from sunshine to snow squalls within minutes above treeline.
Rated Difficult for high altitude exposure and technical sections requiring steady nerves on narrow mountain shelves. High-clearance 4WD essential for rocky sections and loose gravel. Accessible only July-September due to snow, with afternoon thunderstorms common. No fuel available on route – fill up in Susa or Sestriere. Camping restricted in some military zones but excellent bivouac sites exist at Col Basset. Delivers stunning views of Mont Blanc massif and insight into mountain warfare history few tourists ever experience.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Overland Route |
| Surface | Gravel |
| Features | High Altitude, Historic, Remote, Scenic |
| Length (miles) | 22 mi / 35 km |
| Duration | 1-2 days |
| Max elevation (ft) | 8200 ft |
| Best season | July-September |
| Minimum vehicle | High-clearance 4WD |
| Nearest town | Susa, Italy |
| Land manager | Italian Ministry of Defense |
| Permit required | No |
| Cell service | None |
| Water crossings | No |
| Dispersed camping | Yes |
| Start coordinates | |
| End coordinates | |
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Location
Trail Conditions
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Frequently asked questions
Can a stock Jeep Wrangler or Land Cruiser handle the Assietta without modifications?
A stock high-clearance 4WD with low-range is the minimum — think Wrangler, Land Cruiser, or Defender. The rocky gravel ridge road has loose sections and steep drop-offs where ground clearance matters more than lockers, but a lifted or modified rig will have a more comfortable margin.
When does the Assietta ridge road actually open each season?
July through September is the reliable window. Snow can linger on the 2,500-meter ridge well into June, and early October storms can close it fast. Check conditions locally in Susa before heading up — the gate status changes without notice.
Do you need a permit to drive the Strada dell'Assietta?
No permit is required to drive the route. The road is managed by the Italian Ministry of Defense and is generally open to vehicles during the summer season, but access can be restricted without warning for military or conservation reasons — confirm locally before your run.
What's the hardest section and what should I actually expect?
The exposed ridge sections near the highest points push closest to 2,500 meters with loose gravel, narrow shelf road, and no guardrails — one wrong line puts you on a serious slope. The trail earns 'Difficult' from sustained exposure and technical surface rather than one single obstacle, so driver focus matters the whole 22 miles.
Is there any gas or water available on the route, and how far is the nearest fuel from the trailhead?
There is zero fuel or water infrastructure on the ridge — this is a remote alpine military road with nothing on it. Top off in Susa before you leave; it's the last real town with gas stations and is roughly 30–40 minutes from the start of the trail.
Trail track
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