[QUOTE=Diff;191777]Many thanks Richard and Chris. Sounds Promising then.

Richard, can you clarify, did you head east from Mhamid for your first night, or did you follow the M7 route towards Foum-Zguid then turn left (Southwards) towards the border?
If you went east from the M7 route you would be going back towards Tagounite? Can you check the directions given? I don't suppose you have any way points for any of your offpiste stuff do you?

I've checked out the map now and have some more clarity. You're right - I was a bit muddled on the directions.

From Mhamid we took M7 west to Foum Zguid. We left the piste about 30 km from Mhamid and started heading south on tracks that came and went. It was over the stony hamada section I recall that we left the main piste. We followed tracks across country heading vaguely towards (but not reaching) the GPS point at Chigaga (N29 50.685 W06 12.184) which brought us after a few hours on day one to a lovely set of low dunes about the size of a two storey houses in a very large dry river bed. The point was still a good 20km or so as the crow flies from Chigaga (from memory). Tracks run along the edge of the oued where people looking for the best spot to cross. There are plenty of trees growing in the river bed and also a few wells here and there. From where we were the desert was lovely for about a good 15 km further towards the Algerian border. My best guess of the point would be N29 50 W06 03.5
The main piste avoids the oued by going to the north, but this is a pity because it is nice scenary.

The next day we headed on to chigaga (see earlier GPS). That GPS point is near some established camps but you can also find your own dune spot easily enough. We spent another night near N29 52.170 W06 37.979 between Iriki and Foum Zguid. It was very windy, else we would have preferred the smallish dunes you pass about 30 minutes earlier (after the fort) to the south of the last way point. The last waypoint is off the piste, up a valley - a stark but interesting place which was out of the gale that day.