Description
The WAA line is an east-west seismic line similar to the French Line. It is un-clayed and has relatively few people travelling on it. The dunes are less prominent than on the French Line but often contain blow outs (large holes in the sand hills caused by sand being blown out by winds). Blowouts can be a problem for vehicles with poor articulation and generally there are diversion tracks around the worst.
Interactive Route Map

Dalhousie Springs
These hot, fresh water springs are very unique and are an outlet from the Great Artesian Basin. It is the largest known springs and the main spring offers a nice soothing swim for travellers after a hard day’s drive.
Position: 135.5031ºE 26.4225ºS (GDA 94)
Next Place: Lookout
Distance: 19.35km
Average Speed: 54.26km/h
Features:

Position: 135.6665ºE 26.4120ºS (GDA 94)
Next Place: Freeth Junction
Distance: 30.94km
Average Speed: 57.43km/h
Freeth Junction
The first main junction where the track ventures east from Dalhousie Springs into the Simpson Desert is called Freeth Junction. This junction intersects with ‘Rocks Road’ which is an ‘Emergency Use Only’ track that heads south through Macumba Station to Oodnadatta.
Features:

Position: 135.9465ºE 26.3359ºS (GDA 94)
Next Place: French Line & Alka Seltzer Bore Access
Distance: 8.31km
Average Speed: 55.51km/h
French Line & Alka Seltzer Bore Access
Just past the Freeth Junction is an indistinct track that ventures north to the ruins of the Alka Seltzer Bore and further past this heading through thick Coolibah country is Oasis Bore, in the Finke Floodplain.
Features:

Position: 136.0065ºE 26.3019ºS (GDA 94)
Next Place: Purnie Bore
Distance: 10.72km
Average Speed: 50.05km/h
Purnie Bore
Purnie Bore was sunk by teams during the oil exploration years of the Simpson Desert. As the years went by, leaks in the bore caused a substantial amount of hot water to surface and develop into a sizeable lake.
Features:


Position: 136.1117ºE 26.2817ºS (GDA 94)
Next Place: French Line & Rig Road
Distance: 27.68km
Average Speed: 46.45km/h
French Line & Rig Road
Well signposted junction with 330km to Birdsville along the French Line starting with 4m high dunes and 290km later the 35 m high Big Red.
Features:

Position: 136.3831ºE 26.2299ºS (GDA 94)
Next Place: French Line & Colson Tk
Distance: 38.29km
Average Speed: 23.55km/h
Features:

Position: 136.7554ºE 26.1565ºS (GDA 94)
Next Place: Colson Track & Oolarinna Oil Well Access
Distance: 9.78km
Average Speed: 31.36km/h
Features:

Position: 136.7883ºE 26.2385ºS (GDA 94)
Next Place: WAA Line & Colson Track
Distance: 10.21km
Average Speed: 33.14km/h
Features:

Position: 136.8242ºE 26.3232ºS (GDA 94)
Next Place: WAA Line & Erabena Tk
Distance: 52.07km
Average Speed: 21.88km/h
Features:

Position: 137.3458ºE 26.3238ºS (GDA 94)
Next Place: WAA Line & Knolls Tk
Distance: 29.88km
Average Speed: 20.38km/h
Features:

Position: 137.6453ºE 26.3238ºS (GDA 94)
Next Place: Approdinna Attora Knolls
Distance: 30.61km
Average Speed: 24.46km/h
Approdinna Attora Knolls
These fragile gypsum outcrops are of great Aboriginal and scientific importance. They were once the highest dune crests in this area. The first European to visit the Knolls was David Lindsay on January 11th 1886.
Features:

Position: 137.6142ºE 26.0667ºS (GDA 94)
Next Place: French Line & Knolls Tk
Distance: 3.86km
Average Speed: 21.83km/h
Features:

Position: 137.6056ºE 26.0354ºS (GDA 94)
Next Place: French Line & Thomas Track
Distance: 14.08km
Average Speed: 21.84km/h
French Line & Thomas Track
The track that ventures northbound heads toward Mirranponga Pongunna Lake, Thomas airstrip and Thomas No 1 Oil Well.
Features:

Position: 137.7459ºE 26.0247ºS (GDA 94)
Next Place: Poeppel Corner
Distance: 26.02km
Average Speed: 22.05km/h
Poeppel Corner
Adjacent Lake Poeppel. Where NT, SA and Qld border intersect. Has interesting interpretive signs (aboriginal history etc).
Features:


Position: 137.9996ºE 25.9972ºS (GDA 94)
Next Place: QAA Line & French Line Access
Distance: 18.71km
Average Speed: 38.51km/h
Features:

Position: 137.9398ºE 25.8507ºS (GDA 94)
Next Place: QAA Line & K1 Line
Distance: 3.32km
Average Speed: 20.42km/h
Features:

Position: 137.9728ºE 25.8539ºS (GDA 94)
Next Place: Narrow-leafed Hop Bush, QAA Line
Distance: 9.13km
Average Speed: 28.7km/h
Narrow-leafed Hop Bush, QAA Line
The narrow-leaved hopbush also known as Dodonaea attenuata is a very common shrub that can be found in the dunefields. It has slightly sticky, glossy leaves which attract ants and the abundance of this shrub species is said to be caused by rabbits overgrazing on other plants.
Features:

Position: 138.0642ºE 25.8617ºS (GDA 94)
Next Place: Gypcrete Interdunes, QAA Line
Distance: 10.14km
Average Speed: 27.29km/h
Gypcrete Interdunes, QAA Line
Gypsum crystals are caused by saline ground water evaporating under the hot desert sun. This crust, which is known as Gypcrete, forms and often occurs where the lower parts of the desert basins lie adjacent to dried salt lakes.
Features:

Position: 138.1626ºE 25.8724ºS (GDA 94)
Next Place: Salt Bush Flats, QAA Line
Distance: 13.26km
Average Speed: 30.47km/h
Salt Bush Flats, QAA Line
This location highlights the Saltbush species also known as genus Atriplex. These plants are an extremely common herbaceous shrub predominantly in arid Australia.
Features:

Position: 138.2927ºE 25.8816ºS (GDA 94)
Next Place: Georgina Gidgee Interdunes, QAA Line
Distance: 20.97km
Average Speed: 37.9km/h
Georgina Gidgee Interdunes, QAA Line
Georgina Gidgee, also known as Acacia Georginae is the only tree of any size that occurs in the park’s dune system. This tree species grows throughout the Georgina Basin – hence it’s name Georgina Gidgee.
Features:

Position: 138.5070ºE 25.8983ºS (GDA 94)
Next Place: Spinifex Dune, QAA Line
Distance: 17.69km
Average Speed: 39.92km/h
Spinifex Dune, QAA Line
Spinifex, also known as Triodia Basedowii is a perennial grass that is well conditioned to arid environments. This grass species occurs predominantly in the north of the park, and in regard to the QAA Line – occurs in the few dunes around this particular location.
Features:

Position: 138.6816ºE 25.9102ºS (GDA 94)
Next Place: Simpson Desert NP East Boundary
Distance: 2.11km
Average Speed: 40.56km/h
Features:

Position: 138.7023ºE 25.9114ºS (GDA 94)
Next Place: QAA Line & Annandale Ruins Access
Distance: 16.42km
Average Speed: 35.49km/h
Features:

Position: 138.8651ºE 25.8971ºS (GDA 94)
Next Place: Eyre Creek, QAA Line
Distance: 0.12km
Average Speed: 30.63km/h
Eyre Creek, QAA Line
About 59km west of Birdsville and 24km beyond Big Red the creek is a pleasant afternoon return drive from town. You get to cross the largest dunes in the Simpson - twice. There's just under twenty but they will be no problem in high range 4WD with tyre pressures at 20psi or less.
Features:

Position: 138.8664ºE 25.8973ºS (GDA 94)
Next Place: Big Red
Distance: 18.72km
Average Speed: 38.87km/h
Big Red
Big Red, also known by its aboriginal name as Nappamerri, is a huge sand dune in the Simpson Desert that stands approximately 90 metres above sea level and 35 metres above the plain, although height may vary due to winds and dunal movement.
Features:

Position: 139.0531ºE 25.8790ºS (GDA 94)
Next Place: Birdsville
Distance: 43.51km
Average Speed: 42.66km/h
Birdsville
Birdsville is a small town located in Western Queensland, Australia. The town is located 1590 kilometres west of the state capital, Brisbane, and 720 kilometres south of the city of Mount Isa. Birdsville is situated on the edge of the Simpson Desert, and the climate is very arid.
Position: 139.3534ºE 25.8990ºS (GDA 94)
Permits
You will need a
Desert Parks Pass which is a permit that covers all access and
camping. It is advisable to arrange this permit well in advance as it contains specific and comprehensive travel planning information, including a set of maps and booklets. Desert Park Passes can NOT be forward dated. This means, they have to be dated with the date they are purchased. ExplorOz are agents for the sale of the
Desert Parks Pass.
Desert Parks Pass - see Related
Shop Items below.
Things to See & Do
Spinifex Dune, QAA Line - QLD
Spinifex, also known as Triodia Basedowii is a perennial grass that is well conditioned to arid environments. This grass species occurs predominantly in the north of the park, and in regard to the QAA Line – occurs in the few dunes around this particular location.
Georgina Gidgee Interdunes, QAA Line - QLD
Georgina Gidgee, also known as Acacia Georginae is the only tree of any size that occurs in the park’s dune system. This tree species grows throughout the Georgina Basin – hence it’s name Georgina Gidgee. The tree contains the chemicals sodium fluro-acetate which is the active constituent in the poison 1080 – a poison commonly used to control feral animals.
Salt Bush Flats, QAA Line - QLD
This location highlights the Saltbush species also known as genus Atriplex. These plants are an extremely common herbaceous shrub predominantly in arid Australia.
Narrow-leafed Hop Bush, QAA Line - QLD
The narrow-leaved hopbush also known as Dodonaea attenuata is a very common shrub that can be found in the dunefields. It has slightly sticky, glossy leaves which attract ants and the abundance of this shrub species is said to be caused by rabbits overgrazing on other plants. It is an opportunistic species and is common in disturbed environments.
Approdinna Attora Knolls - SA
These fragile gypsum outcrops are of great Aboriginal and scientific importance. They were once the highest dune crests in this area. The first European to visit the Knolls was David Lindsay on January 11th 1886.
They are rare gypsum outcrops and are fragile by nature as well as being considered of great scientific significance.
Gypcrete Interdunes, QAA Line - QLD
Gypsum crystals are caused by saline ground water evaporating under the hot desert sun. This crust, which is known as Gypcrete, forms and often occurs where the lower parts of the desert basins lie adjacent to dried salt lakes. Since high rainfall would dissolve any sulphates, Gypcrete can only develop in arid conditions.
Heading east from
Dalhousie Springs, the best way to get onto the WAA Line is to travel 221km until you meet the Colson Track. It takes about an hour after leaving Dalhousie before you reach the first dune and in all it will probably take you most of the day to get to the Colson, unless of course you choose to take it even easier.
The main stopping points along the way are at
Purnie Bore (toilet, shower, water),
Freeth Junction (start of and ) and there are numerous good
camping options in the last 10km towards the Colson intersection.
From Freeth to the Colson (37km) will take about 1 hr 40m over sandy dunes - the general rule is low range (4th) rather than high range. There's nothing too steep or difficult but most dunes have twists at the top in softer sand and you need the lower gear ratio rather than speed. These are just single lane narrow tracks so using a desert flag and using your radio to periodically check for oncoming traffic is very wise.
You won't find the intersection well signed - for these days, the wonderful signage system of the desert (painted tin lids) are fading and vandals have taken the important track makers that the Desert Parks handbook refers to. You must rely on good maps for your desert
navigation and we recommended those listed above in our Resources or even better you can pre-load your
GPS unit with your route file if you are up-to-the-minute with the latest in.
The next 53km is very slow going - bumpy, small dunes full of blowouts and diversion tracks. Please travel with low tyre pressures and don't contribute to the problem of corrugated dune run-ups.
When you finally reach the next intersection you have reached the Erabena Track. You've just crossed the same number of dunes as you would have if you were on the French Line, only you are crossing them at a point further south where they are considerably smaller.
Make a point of stopping at the
Approdinna Attora Knolls - two gypsum outcrops that were once the highest peaks in the desert. The atmosphere in this area is quite different to other parts of the desert, with a
salt lake (Lake Tambyn) and a significant gidgee forest providing the first option of shady
camping. Note -
camping is prohibited to 1km from the Knolls. The Knolls can be easily climbed giving a nice view, while the nearby salt lakes add to the atmosphere, especially in the light of sunset.
Preparation
Your vehicle will need to be extensively prepared for remote area travel, with all fuel, water, food and vehicle repair equipment and spare parts. All travellers should read the
4WDriving Topic for related articles and checklists for
vehicle setup and driver awareness.
All drivers should set their UHF radios to scan all stations, but take note that Channel 10 is the offical channel for the Simspon Desert. Anywhere in the Diamantina Shire (comprising the towns of
Birdsville,
Betoota and Bedourie) you must not used UHF Ch 8 and 38 as these are to be reserved for emergency calls only - these channels are monitored by the Clinics, Police and station operators and must remain clear. We advise that you refer to the latest information and advice about outback
communications in the
Communications Topic.
For any dune driving you should fly a dune flag from the front of your vehicle to avoid head on collisions on dune tops. Additionally, the lead vehicle in any direction should periodically make calls on Channel 10 from the top of large dunes on the
UHF radio to advise oncoming traffic of your position.
Please take particular note that the Desert Parks Department strongly disapprove of trailers being towed across
the Simpson Desert. Travellers are advised to drop off trailers and conduct a loop trip or a double-crossing to retrieve the trailer later.
Fuel Supplies & Usage
 | Birdsville |
Diesel | 4cyl 71 litres * |
ULP | 4cyl 79 litres |
LPG | 4cyl 97 litres |
| 6cyl 86 litres * | 6cyl 99 litres * | 6cyl 86 litres |
| 8cyl 78 litres | 8cyl 135 litres * | |
Usage is averaged from
TrekFuel (* specific to trek) submissions and calculated based on trek distance.
Best Time To Visit
Closest Climatic Station
Oodnadatta Airport
Distance from Trek Mid Point 248.77km SW
| | Jan | Feb | Mar | Apr | May | Jun |
Jul | Aug | Sep | Oct | Nov | Dec |
| Mean Max. °C |
37.7 | 36.6 | 33.7 | 28.5 |
23.2 | 19.9 | 19.5 | 22.0 |
26.5 | 30.2 | 33.8 | 36.4 |
| Mean Min. °C |
22.8 | 22.3 | 19.2 | 14.4 |
9.8 | 6.6 | 5.8 | 7.4 |
11.4 | 15.0 | 18.5 | 21.2 |
| Mean Rain mm |
24.6 | 32.2 | 12.3 | 11.2 |
12.8 | 12.6 | 10.5 | 7.8 |
9.3 | 14.1 | 11.3 | 16.5 |
Best time to travel Ok time to travel Travel NOT recommended
Services & Supplies
The following locations have various services and supplies:
BirdsvilleThere are supplies at
Oodnadatta and Mt Dare but these locations are not on this route.
Camp Sites & Accomodation
Environment
The Simpson Desert is the driest region of
Australia and it is a dunal desert - a sea of parallel red sand ridges around 300-500 kilometres long covering a total area of 170,000 square kilometres. The South Australian section of
the Simpson Desert is divided into 3 protected areas,
Simpson Desert Conservation Park,
Simpson Desert Regional Reserve and Witjira National Park managed by the South Australian Desert Parks department of the SA Department of Environment and Heritage. A permit (the SA
Desert Parks Pass) is required for all travel and
camping. Rains normally occur in the heat of summer (late December through to early early March), although floods have been known to remain as late as July. Each season is different and you must plan your trip by keeping an eye on
weather conditions and road reports .
There are numerous salt pans and lakes throughout
the Simpson Desert and these can flood after rains and close the desert to vehicle traffic.
Camping around the
salt lake areas near the Erabena Track Junction/French Line is most rewarding because the gidgee woodlands provide shade, shelter and soft ground for
camping. There are increased wildlife viewing possibilities and you'll see great colours over the lakes at sunset.
Flora
The majority of the plant life you'll see is spinifex and upside down trees! Desert vegetation depends on seasonal conditions. In particular after rain the Simpson puts on an incredible show of desert wildflowers including billy buttons, poached egg daises, cunningham bird flower. Most are short lived, and during the peak travel season most people have missed their chance of seeing the desert in bloom.
Fauna
Of all the wildlife you'll encounter in
the Simpson Desert, you'll become the most acquainted with the bush fly - annoying but thankfully gone after sundown. " Eagles" are the most commonly seen of the birds in the desert area although there are some 150 different species of birdlife including the Bustard, Wedge-tailed Eagle, Brown Falcon, budgerigar and Zebra Finch. Around the floodplains you could see Black Kites, Crested Pigeons and Galahs. Many creatures are nocturnal, so they are not easily seen or photographed. These include small marsupials but there are also some feral animals such as rabbits, foxes, camels and donkeys. Dingoes and camels are very common throughout the Simpson with the highest population of camels being in the southern parts so the Rig Road is the best place to spot them. If you get out of your vehicle during the day you might see some reptiles such the Perentie (goanna), Western Brown Snake, Woma Python and the Banded Skink.
Distance is GPS recorded driving distance (not straight line), Direction is straight line from start to end, Time is calculated from actual GPS driving data.