Why did many people leave the Atlas Mountains for cities and plains?

Many people have left the Atlas Mountains for cities and plains primarily due to the region's precarious living conditions and the necessity of finding employment. Despite being densely populated—and in some areas overpopulated—the mountain regions often lack sufficient local economic opportunities to support all their inhabitants.1

Key factors driving this migration include:

• Economic Necessity: The mountains serve as a human reservoir for the Maghribian countries, providing a labour force for development projects. Many people move to the plains to work in commercial agriculture, while others seek employment in mines, such as the phosphate mines in Morocco.1
• Urban Growth: Cities like Algiers, Casablanca, Constantine, and Oran have become major destinations for mountain folk, who often find work as laborers or shopkeepers.1
• Political Instability: In Algeria, the insecurity caused by the nationalist uprising preceding independence prompted many to leave their mountain districts.1
• Post-Independence Shifts: Following independence, many mountain dwellers moved into the plains to occupy housing abandoned by departing Europeans.1
• Remittances: Because local rural and urban activities often fail to provide enough jobs, many emigrants, particularly from Algeria, seek work abroad in France, with their families in the mountains relying heavily on the money they send back.1