Mexico's Sierra Madre Mountain Ranges: Occidental, Oriental, del Sur

Sierra Madre Occidental

• Runs along western coast
• States: Sinaloa, Durango, Zacatecas, Nayarit
• Diverse ecosystems; copper mining

Sierra Madre Oriental

• Parallel to Gulf of Mexico, northeastern Mexico
• States: Nuevo León, Tamaulipas, Hidalgo
• Rugged landscapes, waterfalls, coffee production

Sierra Madre del Sur

• Along southern Pacific coast
• States: Oaxaca, Guerrero, Michoacán
• Highest peak: Cerro Huehuetepec; tropical biodiversity