Mattmark Dam & Reservoir

The Mattmark Dam, located at the head of the Saas Valley just above Saas-Almagell, is Europe's largest natural earth dam and a truly impressive feat of engineering. Visitors can drive or take a PostBus directly to the dam, where a circular hiking trail (approx. 2.5-3 hours, 8 km) around the turquoise reservoir offers stunning panoramic views of the surrounding 4,000-meter peaks and glaciers. There's also an information center detailing its construction and the tragic history associated with it. A restaurant at the dam provides refreshments. Access typically opens from late spring to late autumn, depending on snow conditions, with gates often closing for winter. The experience combines natural beauty with cultural and historical interest, making it a unique destination for all ages. Entrance to the dam area is free, though there may be a small charge for parking.