The wash crossing is deep loose sand with steep embankments on either side and it would be a gamble without 4WD, I wouldn't suggest it but at the very least get out and walk it first to make sure. Note the 'getting there' directions, 19 miles to the small Crow Canyon sign...when Google navigated me here, it directed me to turn one road too soon down a gas line access road to a very wide and definitely impassable section of the wash (even with an ATV or OHV you'd have to go up or downstream to find an exit point). HOWEVER... If you don't have 4x4, you can park down this road which is directly across the wash from the trailhead and just cross the wash on foot, walk maybe 1/2 mile to the trailhead, it will be quite a bit shorter than if you bail out at the wash crossing on the actual access road. Anyhow, the area is more beautiful than i expected, a lot like Utah. Also hiked up the bluff behind, not a lot to be seen up there but just enjoyed the day and scenery of the canyon. A shame that people have added some of their own graffiti to the canyon walls but the petroglyphs are more interesting than most that I've seen elsewhere. Also one small ruin at the entrance.