Grand Wash Trail
What to Expect
Safety Advisory
Flash floods are a serious and genuine threat in Grand Wash — the canyon is narrow with no high ground to escape to. Check weather forecasts before entering and do not hike if rain is predicted anywhere in the region, even miles away. The park posts flash flood warnings at the trailhead.
Grand Wash Road closes seasonally and after storms. Verify road access at the visitor center before driving out, or plan to start from the Highway 24 trailhead instead.
Trail Details
Pro Tips
Set up a car shuttle by leaving one vehicle at the Highway 24 trailhead and another at the Grand Wash Road trailhead — this turns the roundtrip into a one-way 2.2-mile walk and lets you experience the full canyon without backtracking.
Start from the Grand Wash Road (south) end in the morning when the canyon walls catch the light higher up, creating that warm glow against deep blue sky — afternoon light tends to leave the narrow sections in full shadow.
About a mile in from the south trailhead, watch for the signed junction to the Cassidy Arch Trail. Even if you skip the steep climb to the arch, the junction area has some of the best narrow-canyon views on the whole route.