Château de la Montagne, Manor house in Saint-Honoré-les-Bains, France

The château de la Montagne is a manor house near Saint-Honoré-les-Bains, situated on the southeastern slopes of Morvan with extensive grounds. The property contains multiple buildings including stables, a tower, and workshop structures dating from different periods.

A first castle stood at the top of the Vieille Montagne at 556 metres, likely succeeding a Gallo-Roman oppidum between Bibracte and the Loire. It was probably destroyed by foreign troops between 1512 and 1533. In 1571 Guillaume de Grandrye, returning from Constantinople, found his castle ruined and planned a new one above the Seu stream, but the Saint-Barthélemy massacre forced him to flee to Switzerland. The seigneurie was sold by adjudication in 1596 to Jean de Chandon.

The estate's former pottery, classified in 1997, recalls the clay-working activity of the site. The grounds also include a dovecote, kennels, stables, a farm, a gardener's house, an orangery and a fruit store, plus a doll's house in the park. A perpetual rent was founded in 1658 so the parish priest of Saint-Honoré would sing high mass twice a year in the castle chapel.

The château stands within the Morvan regional natural park, on the southeastern edge of Saint-Honoré-les-Bains, above the Seu stream. The estate is private; visits are arranged with the owners rather than on fixed public hours. The grounds include terraces, basins, tree-lined paths and the former pottery, so allow time to walk between the buildings.

The estate's water system is easy to miss: the ice house, the capture works and the hydraulic network of the Deffend spring, plus the intakes, collectors and network of the Vieille Montagne, were registered as monuments historiques by decree of 26 August 2022. The old Montagne pottery had already been classified on 17 July 1997.