Location: Route 21 and Route 8, Potosi Reassurance shield after 8 as we head out of Potosi. Location: Route 21 and Route M, Washington Cty A couple miles later, we’ll approach Route M. Location: Route 21 and Route M, Washington Cty Turn left for M. Location: Route 21 and Route M, Washington Cty Reassurance shield … Continue reading Missouri Route 21, MO-8 to MO-32