Misti

A 5,822-metre stratovolcano in southern Peru, immediately north of the city of Arequipa. Misti dominates the skyline of Peru's second-largest city in the same way Illimani dominates La Paz — the mountain is part of daily visual experience for nearly a million people. The Spanish name comes from a Quechua word for "gentleman" or "lord," used in colonial-era Spanish sources to describe the volcano with the same honorific applied to local Inca nobility.

The volcano is technically active. The most recent significant eruption was in 1985, though the mountain has shown gas emissions and seismic activity in subsequent decades. The summit crater is approximately 800 metres across and has been progressively warming, according to Peruvian geological monitoring. The ash deposits on the upper mountain, particularly on the lee side from the prevailing wind, are deep enough that climbers can struggle with footing on certain sections.

The first recorded ascent of Misti was in 1677, by the Spanish priest Jerónimo de Loayza, leading a procession to install a wooden cross on the summit. The cross has been replaced multiple times in the centuries since. The first ascent in the modern mountaineering sense — with documented technical equipment and timing — came in the 19th century. The mountain has been climbed regularly since then. The standard route via the south side is a long high-altitude walk with no significant technical sections, taking typically two days from the trailhead at 3,400 metres.

For Arequipan residents and Peruvian climbers, Misti is the calibration peak. Children grow up looking at the mountain. Many summit it before their twentieth year. The fatality rate is low, though deaths have occurred from falls in the upper crater area and from altitude problems on the rapid acclimatization profile. The peak does not draw international expeditions in the way Aconcagua or Huascarán do. Misti is a Peruvian mountain in the most direct sense.