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pnuemono-ultra-micro-scopic-silico-volcanico-niosis. i think that's how you spell it. i spaced it how so you can pronounce it. :)
The Sierra Madre. The tallest peak in Mexico however is Pico de Orizaba in the Eje Volcanico Transversal mountain range at 5,636 meters or 18,490 feet.