Rock of ten hours

Dated 1855 and held by Musées Nationaux Récupération, this painting of a distinctive rock formation in the Franche-Comté landscape belongs to the geological landscape subjects Courbet pursued alongside his more celebrated figure works. The Jura plateau features dramatic limestone formations — cliffs, overhangs, and isolated rock masses — that Courbet returned to repeatedly with the same focused attention a geologist might bring. The 'rock of ten hours' name likely refers to a local toponym, and Courbet's use of specific local place-names reinforces his commitment to the particularity of real landscape over generalized picturesque composition.

The isolated rock mass required careful attention to the geological character of Jura limestone — its horizontal bedding, its weathered and fissured surface, the way moss and vegetation colonize its crevices. Palette knife work builds the rock's surface with actual physical relief on the canvas. Sky behind the rock is relatively simple, providing the tonal contrast that articulates the formation's silhouette.