Cleuson Lake, artificial lake in Switzerland
Cleuson Lake is an artificial reservoir located above 2,000 meters (6,500 feet) in the Valais region of Switzerland. The dam stretches over 400 meters (1,300 feet) and rises nearly 90 meters (300 feet) high, holding water from the surrounding valley in a distinctive turquoise blue.
The lake was created in the late 1940s with the construction of the Cleuson dam, which was built with reinforced structures designed to withstand bombing damage. The dam became a key part of the valley's water management system for hydroelectric power generation.
The site is accessible via mountain roads and hiking trails, and visitors should bring water, snacks, and sturdy shoes for the terrain. The area remains cool even in summer, so dress accordingly, and since there are no facilities directly at the lake, plan ahead for your visit.
The water displays a distinctive turquoise hue known locally as Bleu de Cleuson, which appears like a gemstone when light catches it just right. This unusual coloring makes it a popular subject for photographers exploring the alpine landscape.
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