13. GTAM - Stage 13: Pian delle Gorre refuge - Don Barbera refuge
La Conca delle Cársene
The Conca delle Càrsene is a vast plateau consisting of limestone rocks, characterized by expanses of bare, white rocks alternating with grassy cover.
It manifests the typical aspects of karst areas with limestone pavement, dolines and sinkholes. A superficial hydrographic network is completely missing: rain and snow meltwater are immediately absorbed and give rise to the resurgence of Pis del Pesio, located several hundred metres below.
Curiously, there are also areas located beyond the Alpine watershed, such as Plan Ambreuge, that are part of the catchment area, so water falling south of the Alps, after an underground journey, flow out on the Italian side.
[Alpi Liguri, p.80]
[La Guida del Parco Alta Valle Pesio e Tanaro, pp.46-47]
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