Lago di By, Reservoir in Aosta Valley, Italy.
The Lago di By stretches across the northern Italian Alps, featuring steep mountain slopes that descend directly into its dark blue waters.
Engineers constructed this artificial reservoir during Italy's hydroelectric development phase to support the regional power generation network in the Aosta Valley.
Local shepherds maintain traditional alpine farming practices around the lake, continuing centuries-old methods of livestock management in these mountains.
Visitors can reach the lake via mountain paths from multiple starting points, with dedicated parking areas available at the main access routes.
The reservoir's water level fluctuates significantly throughout the year, revealing submerged terrain patterns during low-water periods in late autumn.
Location: Aosta Valley
Address: Lago di By, 11010 Ollomont AO, Italy 11010 11010
GPS coordinates: 45.88722,7.31201
Latest update: March 7, 2025 08:09
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