Sierra Negra

Sierra Negra rises to 4,580 meters above sea level, forming a prominent peak within the Pico de Orizaba National Park near the Veracruz border.

The mountain received its Nahuatl name Tliltépetl from indigenous populations, which directly translates to Black Mountain in reference to its dark appearance.

Local Orizaba Nahuatl speakers maintain a traditional name for the peak, calling it Iztactepetl Icni, meaning Sibling of the White Mountain.

The mountain requires advance permission to access, and visitors must coordinate with authorities at least seven days before their planned ascent.

The Large Millimeter Telescope and High Altitude Water Cherenkov Observatory occupy the summit, making it a significant location for astronomical research.

Elevation above the sea: 4,580 m

Website: http://volcano.si.edu/world/volcano.cfm?vnum=1503-05=

GPS coordinates: -0.81339,-91.13489

Latest update: November 14, 2025 14:07