A couple of comments on the waypoints on this piste.

Between kms 223 - 228, there is no clear track through the dunes. Upon clearing the dunes at km 228 (N19.22.1 W11.57.3) the track to the next point is particularly difficult to locate. We found a very clear and well used track near this waypoint that heads NE and may eventually skirt the following dunes, but it is not the track heading towards the km 265 waypoint. The actual track is not clear for the several kms after the km 228 waypoint but can be found by heading to the east of the approaching dunes. Unfortumately I didn't get the correct waypoint as I was too busy keeping momentum in the soft sand but the best route through the dunes becomes evident at about 235kms.

The Suzuki Dakar rally wreck at km 265 (N19.06.9 W11.44.0) is a bit misleading as it is actually several kms off the main piste down the bottom of an escarpment, although it does make a good camping spot. The main track skirts this waypoint and follows the ridge of an escarpment about 2km to the west of the point.

There is definately no petrol in Rachid as we discovered when we ran out. Only black market petrol was available in Tidjikja at an extortionate rate. Check this petrol very carefully as some of the jerrycans contained some very dodgy whitish additives which caused us major carb problems.

The Mauritianian tourist authorities have recently published a book in french that gives the points on this piste and the other caravan routes to Tichit and Nema. It may be worth finding a copy if you are doing this route for some interesting references along the way.

cheers