Colson track

Thanks for this, yes that is what we want to do. Hopefully be able to go ahead with these plans if possible. I have emailed Mt Dare to see what they say about track conditions etc.

Indeed Julie, good to consider right through the plan.
If you go in Mac Clark, and drove Madigan 1a, 2, Hale River, and the exit to come to Colson, THEN the big question is :

Option 1 - Do you need permission to transit the track say south to French Line, and go in from there ?
I haven't seen or driven Colson above French Line, all I know is if you go to Google maps and sat view, zoom in and find it, it isn't that easy to see !! Not like French Line and other Simmo Tks.

Option 2 - Across Colson and bearing to Geosurveys Hill, Simmo Geo Centre, then down corridors to French Line and to BV from there. NOT an option for the inexperienced, at all.
You would need to really know your stuff, very tough, very slow . . . we bailed before the Hill coming the other way, we would have made it if there was some sort of a track, even a faint one from the Hill to Colson, but we hadn't found ANYTHING substantial in the way of tracks the previous 3 days, so weren't taking a risk.

Option 3 - From corridor east of Hale River and crossing Colson, bearings across corridors and over dunes to Madigan 6 (probably untracked), then east along Madigan and down Hay R Tk to BV (big permit cost $200 ?). Again, not for the inexperienced.

Option 4 - A simpler Simmo crossing, French Line, WAA, Rig, Knolls, or a combination, up to Poeppel, QAA to Birdsville.
Best option for relatively new desert travellers, plenty of company usually travelling both ways, still need good prep, tip top vehicle condition, reasonable nav, you would get good paper maps in the SA Desert Parks Pass info, (cost $150).

Good luck with the planning, if you need further advice, ask away and I'm sure some can assist.

Oh, and for any option, hire a sat phone (if you don't have one in the party) at Mt Dare, you can drop off Birdsville.
Even if there is a HF in the group, or another sat phone, take a second one . . . if option 4, one or either HF or sat phone would do though.