The Moore Cutoff Road connects I-70 with Utah Highway 10. The junction with I-15 is at the turnoff for the Eagle Canyon scenic viewpoint around mile marker 114. The junctions with Utah Highway 10 are between mile markers 16 and 17 and between mile markers 21 and 22. The cutoff road was paved a few years back so the site is accessible with any vehicle.
The map below show the turnout for the site.
The best way to explore is to first visit the few obvious glyph-covered boulders just to the northwest of the parking lot. After that, start exploring and see what other hidden gems you can find. There are many smaller ones here to find if you just look around.