. "M-20 (Michigan highway)" . "East" . "M-20 (Michigan highway)#History" . "M-20 (Michigan highway)#Current designation" . "M-20" . "20" . . . . . . "M-20 (Michigan highway)" . . . . "West" . "M" . . . "213133.47264" . . . . "1926-11-11" .