Smithsonian Butte Back Road
High desert crossing through Arizona Strip country
The Smithsonian Butte Back Road cuts across Arizona’s lonely Strip country, connecting Hurricane, Utah with the remote northwestern corner of Arizona. This high desert route traverses BLM land through sagebrush flats and juniper forests, offering expansive views of distant mesas and the occasional glimpse of Zion’s towering walls to the north. The road passes close to the base of Smithsonian Butte itself, a prominent sandstone formation that serves as a landmark for navigation across this sparsely populated landscape.
Most of the route is suitable for high-clearance vehicles, though 4WD is recommended for wet conditions when the clay-based soil becomes treacherous. Best traveled spring through fall, avoiding winter snow and summer heat. No permits needed, but fuel up before starting — services are nonexistent for long stretches. Bring plenty of water and emergency supplies, as help is far away if something goes wrong. This is a genuine backcountry experience through some of the Southwest’s most remote and least-visited country.
Trail Specs
| Difficulty | Moderate |
|---|---|
| Trail Type | Overland Route |
| Surface | Dirt, Gravel |
| Features | Camping, Remote, Scenic |
| Length (miles) | 35 mi / 56.3 km |
| Duration | 1-2 days |
| Max elevation (ft) | 5800 ft |
| Best season | April-October |
| Minimum vehicle | High-clearance recommended |
| Nearest town | Hurricane, Utah |
| Land manager | Bureau of Land Management |
| Permit required | No |
| Cell service | None |
| Water crossings | No |
| Dispersed camping | Yes |
| Official sources | blm.gov |
| Start coordinates | |
| End coordinates | |
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Location
Trail Conditions
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Frequently asked questions
Do I need a lifted rig or will a stock high-clearance SUV handle Smithsonian Butte Back Road?
A stock 4Runner, Tacoma, or similar high-clearance SUV will manage this trail fine under normal conditions. Lockers and a lift aren't required, but low-range is useful on the steeper eroded sections. Aired-down tires help on the loose gravel and dirt surfaces.
Does this trail close in winter or after rain?
The best window is April through October — winter months bring snow and ice at elevation that can make the route impassable. After heavy rain, the dirt and clay sections get greasy fast and can bog down even capable rigs. Check conditions before you go; nobody's coming to pull you out.
Do I need a permit to drive or camp on Smithsonian Butte Back Road?
No permit required for the drive itself — it's BLM land, so dispersed camping is free and legal under standard 14-day stay rules. No fees, no reservation system, just don't camp within 200 feet of water sources or the road.
What's the hardest section and what should I actually expect?
The route is moderate overall, but the steeper pitches near the butte and some eroded washboard sections will shake your gear loose if it's not secured. Nothing technically gnarly, but deep ruts after wet weather can catch you off guard. Plan for slow, deliberate driving rather than any single scary obstacle.
How far is it to the nearest gas station, and is there any water on the route?
Hurricane, Utah is your last reliable fuel stop before heading out — top off there because there's nothing on the 35-mile route itself. There is no reliable water source on trail, so carry all you need for the full 1-2 days. Cell service is nonexistent the entire route, so download offline maps before you leave.
Trail track
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