Location: US-72 and MS 172, Tishomingo Cty Reassurance shield after Highway 172. Location: US-72 and MS 172, Tishomingo Cty 172 is so close to the state line that we are just now formally welcomed to the state. Welcome to Mississippi! Location: US-72 and Airport Rd, Iuka A couple miles later, we’ll enter Iuka, which US-72 … Continue reading U.S. Route 72, MS-172 to MS-25