Complex sentence: Glaciers and waterfalls, which are near to the Pampa Lenda, are located to the west of Bariloche the base for mountaineering trips to Mount Tronador (also known as the Thunderer as ice falling produces such sounds) (3554m) of extinct volcanic origin.
Split into simpler sentences: Glaciers and waterfalls, which are near to the Pampa Lenda, are located to the west of Bariloche. It is also the base for mountaineering trips to high Mount Tronador (also known as the Thunderer as ice falling produces such sounds) of extinct volcanic origin.