Williams Creek to Roxby Downs

If the roads are in good nick, you can do it in a couple of hours.

Right now it will take a few days or more because the Oodnadatta Track is closed.
http://www.dpti.sa.gov.au/OutbackRoads

Cheers,
Peter
OKA196 motorhome

~ 260km, when good / dry should be 80km/hr no probs, allow half day driving.
Yes, if you haven't been through there, lots to see.
Stop at Strageways, Beresford, Coward Springs, Mound Spring Cons Pk, Curdimurka siding.
Time permitting, a look at Plane Henge just past Borefield Rd (32km return), you could spend an hour looking at the sculptures there.

Is there a reason you don't want to travel on via Marree / Farina etc ?
I feel this is more interesting route on offer that way, and via Flinders if going further south.
Maybe you are heading west at Stuart Hwy, but you can go through to Hawker / Quorn, come out Stirling North which is right on south side of Pt Augusta if you like, and this is not too far back down the road.
Very nice drive.

Thanks for the info :)

Now I will have a mooch and find a few things to look at on the way.

I have been to Marree and out to Lake Eyre South before so I intend to go down through Roxby this time.