Mont Blanc massif led to calls to limit access to the most popular summits and for the mountains to be treated with greater respect. The Mont Blanc massif has provided numerous opportunities for academic research, dating back to the very first ascent of Mont Blanc in 1786 during which Michel Paccard carried scientific equipment to confirm it as the highest summit. In 1820, an ill-fated expedition led by Dr Hamel included pigeons intended for release at varying altitudes to measure the impact of reduced air density on their ability to fly. In 1890, Joseph Vallot built a small meteorological observatory at approximately between
Pisco (mountain) is predicted that this mountain will get more difficult as the glacier continues to recede. There are a multitude of companies in Huaraz offering guided climbs of the mountain, which usually include all equipment, food, transport, guide, and possibly a porter. The normal route is from the road to the south, up to the col to the west, then to the summit. There are two or three camps on the mountain and one at its base, although climbers often only use one. The first is next to the road and river on the valley floor, known as Cebollapampa. The second