The river rises in Seine-Maritime in the Pays du Bray, near Forges-les-Eaux. The river empties into the Seine not far from Giverny
In 911 the Treaty of Saint-Clair-sur-Epte established the river as the historical boundary of Normandy and Île-de-France.
Claude Monet lived at Giverny near the river for more than forty years. In his garden, by diverting a branch of the Epte, he established a water garden with its famous water-lily pond and its Japanese-style bridge. The river appears in several of his works, including Peupliers au bord de l'Epte.
The Norman incursions under Rollo of Normandy were halted by the Treaty of Saint-Clair-sur-Epte in 911 which established the Duchy of Normandy and fixed its boundary with the territory of the Kingdom of France along the riverEpte.
It is bounded by the riversEpte, Andelle and Seine.