Location: I-15 and US 93, Clark Cty Reassurance shield as US 93 joins I-15. Location: I-15 and Las Vegas Blvd, Clark Cty A few miles later, we’ll approach SR 604. Location: I-15 and SR 604, Clark Cty Exit for 604/Las Vegas Blvd south. 604 is the old US 91 alignment down to downtown.    S … Continue reading Interstate 15, US-93 to SR 604