A luminous sweep of water and foliage fills this generous canvas from 1930, showcasing Louis Valtat at the height of his mature confidence. Painted at Choiseul, the composition captures the Ruisseau l'Ecosse-Bouton with a richness of surface and chromatic invention that distinguishes Valtat's landscape work from that of his Post-Impressionist contemporaries. Broad, assured brushstrokes build a tapestry of greens, ochres, and reflected light, giving the scene both immediacy and a meditative stillness. At 89 by 146 centimeters, the work commands presence, inviting prolonged looking rather than quick reading. Valtat occupies a singular position in early twentieth-century French painting, bridging the expressive color of Fauvism with a structural sensibility rooted in Cézanne and the Nabis. He was, notably, among the first French painters to exhibit work that Pierre Bonnard would later identify as proto-Fauvist in spirit, yet his sustained commitment to landscape across decades gave his practice a coherence and depth that set him apart from artists more closely associated with movements or manifestos. This river subject reflects the sustained pleasure he took in the countryside around his home at Choisel, a region he returned to repeatedly and rendered with ever-deepening familiarity. The work carries significant scholarly standing, having been confirmed for inclusion in the forthcoming catalogue raisonné being prepared by the Association Les Amis de Louis Valtat, with that confirmation documented as of November 2024. For collectors seeking a substantial, well-documented example of French Post-Impressionist landscape painting, this canvas represents a rare opportunity to acquire a work whose place in the permanent record of the artist's output is formally secured.