Last Driven August 2018 (Historic Photo: June 2012) Location: I-15 and Bluff St, St George After SR-18/Bluff St, we’ll head out of the populated part of St George and get our first mention of an Arizona exit. Southern Pkwy is SR-7 Location: I-15 and Brigham Rd, St George Reassurance shield after Brigham Rd as we … Continue reading Interstate 15, UT-18 to UT-7