Around 6 miles west of Laughlin Nevada is the junction of SR-163 and Christmas Tree Road. From there the trail head to the Grapevine Canyon Petroglyphs is just 2 miles of well maintained 2WD dirt road. Beyond that, continuing on north and then west Christmas Tree Pass Road to US-95, the road can get get quite washboarded (if graded recently) and have fresh sand and gravel spread in some sections. There are some steeper sections near the pass. The sections crossing washes can be also be quite soft (more notable if you are 2UP without knobbies like we were, otherwise hardly worth a mention). Complete tracks at GPXchange.com The petroglyphs were numerous. This isn't just a few selected pieces of rock art. If you visited here several times you would still be finding more of them. Quite a few are viewable up close at ground level. Christmas Tree Pass Road north from SR-163 Grapevine Canyon as seen just beyond the trail head A rock formation along the way (PACman?). It's only a 400M walk from the trailhead to the first Petroglyphs. The rocks are covered! Many petroglyphs can be seen at ground level Some small treasures further up the slopes Lots of beautiful natural formations too!!