Montes dos Chaos Nature · Negueira de Muñiz, Fonsagrada, Lugo Image of Negueira de Muñiz, not of the place itself. At 1,033 metres they are the highest point of a municipality of 72 square kilometres with very broken relief and an almost alpine climate, with cold winters and frequent snowfalls over the Navia valley. Photo: Xoacas (CC BY-SA 3.0) What to see and do in Negueira de Muñiz