07-Nov-2009 -- During the travel in Algeria, after our group having successfully reached the confluence point 24N 3E in Adrar Hanet, we continued in the South of Tamanrasset through the Tassili oua-n-Ahaggar.
In this region I checked that our position was near the confluence point 22N 7E, so I decided to guide the group to try to reach also this point, so in the middle of the morning, after having crossed a lot of little sand dunes, we reached the point 22N 7E located near a little rock mountain at the border of a sand area.
At the confluence point we buried an empty bottle with inside the names of the participants, with a little vertical rock on top.