Yonne — Yonne below Barrage de Pannecière — Montreuillon

About

Classe II-III (release days). The third of the Morvan's grands-lacs release runs: on scheduled lâchers the Pannecière dam turns the normally quiet upper Yonne into a punchy class II-III torrent down the wooded valley toward Montreuillon and its aqueduct. Much less famous than the Chalaux or Haute Cure and correspondingly quieter. Outside release days the reach is unpaddleable; upstream of the lake the Château-Chinon–Chaumard stretch is a separate easy class I bocage float. Season: Dam-release weekends only: typically 8–12 scheduled dates April–September, releases of ~15–35 m3/s starting mid-morning and held 4–6 hours; calendar published Feb–March by VNF/Parc du Morvan Gauge reference: No natural season — consult the annual Pannecière release calendar (VNF / Parc du Morvan / local bases)

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