The Loue valley, in the Département of Doubs, is one of the most beautiful river valleys in France. The source of the Loue is immensely dramatic — pools and waterfalls in a limestone cirque, where the river emerges in a rush from solid rock — and from there the river winds through a gorge that is a delight at almost every turn.
The village of Ornans is worth a visit: it has a museum dedicated to Gustave Courbet, who was born here and painted the valley repeatedly. The Musée Courbet is the main cultural attraction in the valley and one of the best small art museums in eastern France. The Château de Cléron, dramatically sited above the river between Ornans and the source, is one of the finest privately owned castles in the Franche-Comté.
The stretch from the source down to Ornans is the most spectacular, but the lower reaches are well worth continuing through. The Loue is also one of France's great fly-fishing rivers, drawing anglers from across Europe for its trout and grayling.