Eddie, the road isn't that technical but it can be sandy in spots and a few rocky sections as well. It is impassable after a rain because of numerous washes that it crosses. If the weather is good you could probably make it at least to the temple of the sun and moon in a rental that you don't care about
That area is spectacular with huge monoliths popping out of the landscape and it is rarely visited because of it's remoteness. Get up early and be there for sunrise or better yet camp out there and have the place to yourself.
regards
Erik
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