French Line: Crossing the Simpson Desert
If the Simpson Desert is Australia’s ultimate desert adventure, the French Line is its beating heart.
Stretching across endless dunes and deep red sand, the French Line has become one of the country’s most legendary 4WD routes.
It’s relentless.
Dune after dune after dune.
Corrugations that rattle every bolt in the vehicle.
And endless desert horizons that make you feel very small very quickly.
What Is the French Line?
The French Line is the most direct east-west route crossing the Simpson Desert.
It cuts through the centre of the desert, linking Dalhousie Springs and Purni Bore in South Australia with Birdsville in Queensland.
The route delivers classic Simpson Desert terrain:
- Soft red dunes
- Corrugated approaches
- Remote campsites
- Endless desert landscapes
Why the French Line Is So Famous
Because it delivers the pure Simpson experience.
No distractions.
Just dune crossings all day long.
The French Line is usually the busiest Simpson route, but the desert still feels massive once you’re properly out there.
Every crest reveals another sea of dunes disappearing into the distance.
How Hard Is the French Line?
The difficulty changes constantly depending on conditions.
Dry churned-up dunes can become surprisingly technical.
Drivers regularly deal with:
- Soft sand climbs
- Steep dune faces
- Heavy corrugations
- Deep wheel ruts
Tyre pressures become critical.
Looking for something considerably more remote? The Madigan Line offers a very different Simpson Desert experience, with greater isolation and a stronger expedition feel than the better-known east-west routes.
Why the French Line Deserves a Patch
The French Line woven patch represents one of Australia’s great 4WD bucket-list routes.
Proper desert country.
Proper dunes.
Proper earned adventure.
Keep Exploring the Simpson Desert
If you're weighing up different routes, read our French Line vs QAA Line comparison. You can also explore our Desert & Outback patch collection for the tracks and landmarks that make up a Simpson crossing.
Track it. Mark it. Stitch it. Send it.