Grosser Oschenik See, lagoon in Austria
Grosser Oschenik See is a reservoir nestled high in the Austrian Alps near Flattach, fed by the Fragant river and impounded by a dam. The clear waters are surrounded by steep alpine slopes and forests, with the site serving as part of a hydroelectric system for the region.
The lake expanded to its current size with the construction of a dam in 1979, which enlarged the original smaller body of water. This infrastructure was built to generate electricity for the surrounding region and support Carinthia's water management system.
The lake holds significance as a gathering place for cyclists and hikers drawn to mountain pursuits in the Carinthian region. Visitors come to test themselves against the steep climb and to experience the solitude of high alpine terrain.
Access to the site is via a narrow mountain road starting near Innerfragant with steep gradients, controlled by gates at the dam that limit entry. Visitors should prepare for rough conditions and significant physical endurance, whether arriving by bicycle or on foot.
The road to the lake ranks among Austria's steepest and most demanding cycling routes, with sections reaching 18 percent gradient. The climb has become legendary among cyclists seeking an extreme physical test.
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