Wisconsin State Route 133 is a east-west highway in Northwestern Iowa County. It runs from the Grant/Iowa County Line, near Muscoda, to the Iowa/Richland County Line, near Lone Rock. WI St Rt 133 passes through the following towns in Iowa County. Muscoda Avoca WI St Rt 133 is multi-plexed in Iowa County. Wisconsin State Route 80, near Muscoda. Wisconsin State Route 130, near Lone Rock.