Hello, while on paper it makes to have a primary route connect to I 15 from the junction south of Moapa Valley, the Valley of Fire Highway is also a park road with an entry fee used only by parkgoers for most of it route, and is not used by through traffic heading between the town and the Interstate. Route 169 is the only major road in an out of Moapa Valley and this leads to another rather uncommon primary spur instance here.