Lake Arareco, Mountain lake in Sierra Madre Occidental, Chihuahua, Mexico.

Lake Arareco is a U-shaped reservoir of 40 hectares in the Sierra Madre Occidental, 5 km from Creel in Bocoyna municipality, Chihuahua. It was formed by damming the waters of two rivers and mountain runoff. The lake is bordered by conifer forests of pines, oaks and madrones, and by rock formations; its level stays constant year-round.

The lake is artificial, created by damming the waters of two rivers and the runoff from the surrounding hills; it lies beside the Tarahumara ejido of San Ignacio de Arareco in the municipality of Bocoyna. Its Rarámuri name means horseshoe. The lake is now part of Barrancas del Cobre National Park, and camping, shelters and tourist facilities there are run by the Tarahumara community.

The lake lies beside the Tarahumara ejido of San Ignacio de Arareco, and its name comes from ralámuli: Arareco means horseshoe, after the U-shape of the water. Camping areas, shelters and tourist facilities around the shore are run by the indigenous community.

The lake sits roughly 14 kilometers south of the town of Creel, which has accommodations and supplies. From Creel, visitors can easily drive to reach the water and also access trails that explore the surrounding forests and waterfalls.

The location sits at a crossroads between different forest types, where pine-oak forests in higher elevations exist alongside other vegetation in lower zones. Nearby stands the Cusárare waterfall, a 30-meter natural drop that can be reached by hiking from the lake area.