Diga di Mattmark, Hydroelectric dam in Saastal Valley, Switzerland.
The Mattmark Dam rises 120 meters high with a 780-meter-long crown, creating a reservoir that holds 101 million cubic meters of water.
On August 30, 1965, a devastating glacier collapse at the construction site resulted in the loss of 88 workers from multiple European nations.
The dam construction in the 1960s represented Switzerland's industrial growth and relied heavily on Italian migration workers for its completion.
The dam structure generates hydroelectric power through Kraftwerke Mattmark AG while providing water resources for the surrounding Valais region.
The structure stands as Switzerland's most voluminous dam, containing 10.5 million cubic meters of stone material in its construction.
GPS coordinates: 46.04859,7.95861
Latest update: March 6, 2025 05:35
Allalinhorn
5 km
Lake Mattmark
1.2 km
Metro Alpin
4.3 km
Cingino Dam
6.5 km
Fee Glacier
5 km
Allalin Glacier
2.5 km
Strahlhorn
5.9 km
Mittelallalin
4.3 km
Rimpfischhorn
6.4 km
Monte Moro
5.6 km
Pizzo Bottarello
5.7 km
Hohlaubgletscher
2.1 km
Feechopf
5.8 km
Almagellhorn
5.1 km
Egginer
3.7 km
Stellihorn
3.6 km
Spechhorn
5.2 km
Mittaghorn
4.3 km
Fluchthorn
4.5 km
Joderhorn
6.3 km
Schwarzberg Glacier
5.4 km
Mellich Glacier
6.4 km
Nollenhorn
2.3 km
Felskinn
4.5 km
Plattjen
5.7 km
Madonnina d'oro delle nevi
5.8 km
Punta San Pietro
6.3 km
Punta Giapin
6.6 kmReviews
Visited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes