Simpson Desert Crossing — Birdsville to Mount Dare via Poeppel Corner and the French Line
1,100 dunes, one tri-state corner, zero fuel stops.
You leave Birdsville, climb Big Red for the photo, and then the desert starts counting dunes for you. The Simpson is a sea of roughly 1,100 parallel sand ridges, each one running north-south, so every mile of this east-west crossing is another climb and another blind crest. The line runs out to Poeppel Corner, where Queensland, South Australia and the Northern Territory meet at a single survey post in a salt lake. From there you follow the French Line west past the Knolls and the Purnie Bore, then ease into Dalhousie Springs and a final push to Mount Dare. Old seismic survey lines from the oil exploration days are the only reason any of this is drivable.
This is a proper remote crossing. Run 4WD with low tyre pressures, a sand flag, UHF, a sat phone or beacon, and at least 200 litres of fuel range. There’s no fuel between Birdsville and Mount Dare, and no cell service. You need a Desert Parks Pass for South Australia and a Queensland camping permit. The park is closed from December 1 to March 15, and April to October is the sane window. Go in a group, not solo. Soft sand, bent springs and heat will find your weak spot. In return you get a night sky with no competition and a dune-top silence you can’t get on any bitumen. Have a dirty day.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Overland Route |
| Surface | Sand |
| Features | Camping, Historic, Remote, Scenic |
| Length (miles) | 320 mi / 515 km |
| Duration | 4-6 days |
| Max elevation (ft) | 650 ft |
| Best season | April-October (closed Dec 1-Mar 15) |
| Minimum vehicle | 4WD high-clearance with recovery gear and sat comms |
| Nearest town | Birdsville, Queensland |
| Land manager | SA Department for Environment and Water / Queensland Parks and Wildlife Service |
| Permit required | Yes |
| Cell service | None |
| Water crossings | No |
| Dispersed camping | Yes |
| Official sources | SA National Parks - Desert Parks Pass info |
| Verified | |
| Start coordinates | |
| End coordinates | |
| Copy both for Google Maps directionsClick to copy the directions URL · or open it directly in a new tab | |
| Find on Google | Search on Google → |
Location
Trail Conditions
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Frequently asked questions
Can a stock 4Runner or Land Cruiser cross the Simpson?
A stock 4WD can make it if it has all-terrain tires that air down to about 15-18 psi, a compressor, recovery boards, a snatch strap, and a sat comm device. Ground clearance matters less than tire pressure, driver technique, and carrying enough fuel and water for the full 515 km.
Is the Simpson Desert open in summer?
No. The desert is closed Dec 1 to Mar 15 because of extreme heat, often above 45°C, and the risk of getting stranded with no help coming. The best window is April to October, with cold nights near freezing and dunes that are firmer in the cool morning hours.
What permits do I need to cross the Simpson Desert?
You need a Desert Parks Pass for the South Australian side, and a Queensland Parks and Wildlife camping permit for the Munga-Thirri-Simpson Desert National Park side. Buy both before you leave because there is no way to sort it out once you're in the dunes.
What's the hardest part of the crossing?
The big eastern dunes near Birdsville, including Big Red, are the best-known climbs. The real challenge is the 1,000+ dunes in a row, many with blind crests where you can meet oncoming traffic head-on. Fly a sand flag, run your headlights, and call your position on UHF channel 10 before you crest.
How much fuel do I need for the Simpson Desert crossing?
There are no fuel stops between Birdsville and Mount Dare, so plan for the full 515 km plus a reserve. Soft sand can raise consumption 50-100% over highway driving, so carry enough for roughly 700+ km of range, with extra for detours or a recovery.
Trail track
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