The two main overview maps of Morocco are the Michelin 742 and IGN Maroc, both scaled at 1:1 000 000 (1cm = 10km). Both have their flaws also: roads not mentioned or wrong depicted (it is however not easy to keep up with the ongoing tarmac fever in Morocco). Basically, it comes down to personal choice. In my opinion, the most beautiful and usable is the Michelin, but the IGN has the advantage that it has grid lines.