Missouri Route 4
Route 4 was a route that went from U.S. [Route 136 in Nebraska|U.S. Route 136] at the Nebraska state line to U.S. [Route 169 in Iowa|US 169] at the Iowa state line.
Route 4 was a route that went from U.S. [Route 136 in Nebraska|U.S. Route 136] at the Nebraska state line to U.S. [Route 169 in Iowa|US 169] at the Iowa state line.