The tracks were originally built to serve the construction of the Artouste dam, a project that required the transport of heavy equipment to an inaccessible mountain site.
The rail gauge measures exactly 50 centimeters, making it an unusually narrow track compared to standard tourist lines.
The route includes passage through a specific tunnel, the Tunnel de l'Ours, which is known for its distinct echo and history during the dam construction phase.
The entire rail journey is conducted in open-air carriages, exposing passengers directly to the high-mountain elements.
The Artouste dam is a gravity dam that creates a reservoir of water primarily used for hydroelectric power generation.
The Petit Train d'Artouste is Europe's highest narrow-gauge tourist railway, reaching an altitude of 2,000 meters in the Ossau Valley of the French Pyrenees. Originally constructed in the 1920s to transport workers and materials for the Artouste hydroelectric dam, it was converted for tourist use in 1932. The journey begins with a gondola ride from the Artouste resort up to the train station at Lake Artouste. The rail route spans approximately 10 kilometers along the mountainside, offering views of the Soussouéou valley. The train navigates steep cliffs, tunnels, and dramatic switchbacks before terminating near the Artouste dam. Travelers can choose to explore the surroundings at the terminus before returning by train. The experience is entirely dependent on the operation of the Sagette cable car. It is a seasonal attraction that operates during the warmer months due to extreme high-altitude winter conditions.
The open-air carriage seats on the right side of the train during the ascent provide the most expansive views of the valley.
Bring a jacket and windbreaker, as temperatures at 2,000 meters are significantly cooler than in the valley regardless of the season.
Wear sturdy, closed-toe walking shoes if you plan to hike from the final train stop toward the lake or the dam.
Book your tickets in advance, as capacity is limited and trips frequently sell out during peak summer months.
Do not attempt to hike from the resort base to the station; the elevation gain is substantial and requires utilizing the gondola.
Operates exclusively from late spring through early autumn; remains closed during winter and early spring due to heavy snowfall and ice.
