Pico da Neblina (Mist Peak) is the highest mountain in Brazil, 2,994 metres (9,823 ft) above sea level, in the Serra da Neblina, Serra do Imeri, a section of the Guiana Highlands on the Brazil-Venezuela border. As determined by a border survey expedition in 1962, its summit lies just within Brazilian territory, at a horizontal distance of only 687 m (2,254 ft) from the Venezuelan border at Pico 31 de Março. As the peak's name suggests, it is shrouded in dense clouds most of the time. It was first ascended in 1965 by members of a Brazilian Army expedition.
Officially, Pico da Neblina is located in the municipality of Santa Isabel do Rio Negro, state of Amazonas. However, this is of next to no practical significance, since the mountain is inaccessible from the urban seat of the municipality, about 180 km (112 mi) away, and federal authority over the national park, the Yanomami reservation and the border security area supersedes municipal authority in all practical respects. The nearest city is actually São Gabriel da Cachoeira, about 140 km (87 mi) in a straight line, from where virtually all climbing expeditions depart.
The mountain is contained in the Brazilian Pico Da Neblina National Park; its northern slopes are also protected in Venezuela's Serranía de la Neblina National Park. The twin parks, together with the neighbouring Parima Tapirapecó National Park (Venezuela), form a protected area complex of about 80,000 km², possibly the largest national park system in tropical rainforests in the World. Pico da Neblina is also located within the territory of the Yanomami people's reservation.