How many miles from Las Vegas to Colorado city in Arizona?

160 miles taking this route:

1. Take I-15 NORTH from Las Vegas to SR-9 EAST to HURRICANE at EXIT 16 in UTAH.
2. Take SR-9 EAST to SR-59 in Hurricane; turn right onto SR-59 EAST.
3. Take SR-59 EAST to Colorado City, Arizona. SR-59 becomes SR-389 as it enters into ARIZONA.