- Extends along Mexico's western coast.
- Covers states such as Sinaloa, Durango, Zacatecas, and Nayarit.
- Notable for diverse ecosystems and copper mining activities.
Sierra Madre Oriental:
- Runs parallel to the Gulf of Mexico and covers northeastern Mexico.
- States like Nuevo León, Tamaulipas, and Hidalgo.
- Known for rugged landscapes, waterfalls, and coffee production.
Sierra Madre del Sur:
- Situated along the country's southern Pacific coast.
- Stretches into states like Oaxaca, Guerrero, Michoacán.
- The tallest peak, Cerro Huehuetepec and tropical biodiversity.