Martin Tritschler flew the flag of Mexico on the summit of this mountain, which is second most prominent volcanic peak after which mountain?
Martin Tritschler:  He also participated prominently in the war against the United States, gave aid to the victims of the explosion of the Colecturía de San Andrés, during the Second French Intervention, and in 1873 he became the first man to fly the flag of Mexico on the summit of Pico de Orizaba.
i don't know