Here is another example how to make a map from the scratch.
The only clue I had about making this map was the name of the region: Minqar Qaim
After determining the approximate location with the help of Google_Earth map, I first noted the coordinates and then I searched for this map within the MICRODEM engine.
The next thing I did was to download the correct section of the SRTM3 African map (according to the coordinates, 31N 27E) from the NASA directories.
Here is the final result:
