High Quality Content by WIKIPEDIA articles! Mississippi Highway 172 (MS 172) is a state highway located in Tishomingo County, Mississippi. The route runs 12.074 mi (19.431 km) from U.S. Route 72 (US 72) near Burnsville east to US 72 near Oldham, just west of the Alabama border. The route is a two-lane undivided road its entire length and runs mostly through wooded areas. It also passes through the town of Iuka, where it has an intersection with MS 25.