Located inside two national parks, Nahuel Huapi in Argentina and Vicente Pérez Rosales in Chile, Tronador hosts a total of eight glaciers, which are currently retreating due to warming of the upper troposphere.

The humid temperate climate of the southern Andes has allowed several glaciers to develop due to high accumulation rates.

Located in the middle of the Andean massif at a latitude of 41° S, Tronador is part of an alpine landscape of fjords, glacial lakes, and U-shaped valleys.

Up to eight glaciers have been inventoried: Alerce, Ventisquero Negro, Casa Pangue, Castaño Overa, Río Blanco, Frías, Peulla, and Manso.

Ventisquero Negro ("black snowdrift" in Spanish) is a rather unusual glacier at the base of Tronador in Nahuel Huapi National Park.

The Argentine side risks becoming no longer accessible due to increasingly warm weather in the region destabilising the glaciers.