Châteaulin

France, France

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Châteaulin is a charming sub-prefecture commune in the Finistère department of Brittany, northwestern France, nestled in a valley along the River Aulne and the Nantes-Brest Canal, roughly midway between Quimper and Brest.

Known historically as a salmon fishing hub—earning locals the nickname "pen-eok" or "salmon heads"—it grew from medieval river fords into a unified town around the 15th century, later becoming a royal sénéchaussée after Brittany's 1532 union with France, with significant slate quarrying and judicial activity.

Today, with about 5,100 residents, it blends heritage sites like the 16th-century Saint-Compars chapel, remnants of a feudal castle, and the old wheat market hall with scenic surroundings of the Menez-Hom hills and Monts d'Arrée, serving as a gateway to Crozon Peninsula beaches and outdoor pursuits.