Onion Creek Road — Castle Valley to Fisher Towers via Colorado River Canyon Bench

Onion Creek Road turns off Utah Route 128 about 20 miles northeast of Moab and immediately drops you into a narrow canyon carved through the Morrison Formation — banded reds, purples, and greens stacked like a painter’s palette gone wrong. You’ll ford Onion Creek a dozen or more times, each crossing shallow but rocky-bottomed, before the canyon opens into a wide bench with views straight at the Fisher Towers’ 900-foot rust-colored monoliths. The creek crossings are the main event: slippery, cobbled, and just deep enough in spring runoff to remind you this isn’t a car-wash special. The two-track tops out on Thompson Mesa before looping back toward the highway.

A capable high-clearance vehicle handles this fine — 4WD is recommended but not always mandatory in dry conditions. The crossings spike in depth May through early June with snowmelt; visit July through October for more predictable water levels. No permit required. Moab is your fuel and supply point. Cell service is nonexistent once you’re in the canyon. Camping is available at the BLM’s Fisher Towers Recreation Site, one of the better free camps in canyon country. Expect company on weekends — this is close enough to Moab that it draws a crowd, but it earns it.