Grand Brion, Mountain summit in Vercors Massif, France
The Grand Brion extends across four kilometers of wooded ridge at an elevation of 926 meters, creating a natural barrier between the Drac Valley and Vercors Massif.
The helical tunnel through Grand Brion, constructed in the late nineteenth century, represents a significant achievement in Alpine railway engineering.
The mountainside previously housed Notre-Dame de Bréga church, documented in a donation from 1030, marking the religious significance of this elevation.
The hiking trail starts at La Valonne parking area, covering 14.7 kilometers with a 695-meter elevation gain and requiring approximately six hours to complete.
The mountain's slopes supported a pottery industry through the nineteenth and twentieth centuries, with quarries concentrated near La Rivoire gorge.
GPS coordinates: 45.02348,5.67754
Latest update: June 23, 2025 11:46
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