No federal highways cross through the county. The main routes are Missouri State Highway 8, which runs west to east through its center; Highway 21, which runs roughly north to south and intersects Highway 8 at Potosi; Highway 32, which cuts through Caledonia and the southeastern part of the county; and Highway 47, which runs northwest to southeast through the unincorporated communities of Richwoods and Old Mines. | No federal highways cross through the county. The main routes are Missouri State Highway 8, which runs west to east through its center; Highway 21, which runs roughly north to south and intersects Highway 8 at Potosi; Highway 32, which cuts through Caledonia and the southeastern part of the county; and Highway 47, which runs northwest to southeast through the unincorporated communities of Richwoods and Old Mines. |