WE had a road trip that included routes through California, Arizona and Nevada and this map was perfect for the route through Arizona. The map was an ideal size to handle in a car. The routes were accurate and indication of scenic routes was perfect. The detail may seem sparse but the main routes are there and generally you get a free detailled map when you enter a national park.
map of arizona - shame they are so state orientated if they made one that was more for destinations e.g. lake Powel and surrounding area (that goes through a few states that would be a hit as crossing the state lines means get another map out