Last Driven August 2018 Location: I-15 and 900 South, Payson Reassurance shield after the SR-178 junction as we head out of Payson (Historic Photo: June 2010) Location: I-15 and US-6, Santaquin 1 mile until US-6 splits to head west. We’ll also hit an unmarked SR-198 junction. Location: I-15 and Main St, Santaquin 1/2 mile to … Continue reading U.S. Route 6, SR-178 to I-15/SR-198