Where is the dig site in Algiers?

Hint 1 of 3:

There was a map back in Omar's house that you could have picked up.
If you are playing TEAM, Omar will volunteer the map after you have
shown him the Sunstone.

Hint 2 of 3:

Only a native would recognize the terrain on the map.

Hint 3 of 3:

There are a bunch of nomad camps around the area.