Lorette is a commune in the Loire department in central France, in the Gier valley. Lorette lies in the valley of the Gier, a coal mining region, on t…Lorette is a commune in the Loire department in central France, in the Gier valley. Lorette lies in the valley of the Gier, a coal mining region, on the south bank of the Giers just east of La Grand-Croix. The Dorlay river, a tributary of the Gier that rises in Mont Pilat, defines the west border of the commune.