The National Reserve Lake Carlota (Reserva Nacional Lago Carlota) is located in a cold steppe climate, meaning, dry, with average precipitations annual non superior to 16.907 ounces, with short humid season and very low temperatures in winter.

The vegetation in the National Reserve Lake Carlota (Reserva Nacional Lago Carlota) is compound fundamentally of the vegetation formation Forest Caducifolio of Aisén, dominated by Lenga (Nothofagus pumilio) and Ñirre (N. Antarctica), in its more Eastern distribution, practically surrounded by the steppe.

The species of fauna more common to observe in the National Reserve Lake Carlota (Reserva Nacional Lago Carlota) are Puma (Felis concolor), Huemul (Hippocamelus bisulcus), red Fox (Zorro Colorado) (Pseudalopex culpaeus), Patagonic Chingue (Conepatus Humboldt), Piche (Zaedyus pichi) and species introduced as the Hare (Liebre) (Lepus capensis ) and Red Deers (Ciervos Rojos) ( Cervus elaphus).

Among the birds that we found in the National Reserve Lake Carlota (Reserva Nacional Lago Carlota) are common the Cóndor (Condor), (Vultur gryphus), Tagle (Eagle) (Águila) (Geranoaetus melanoleucus), Kestrel, (Falco sparverius), fisher man Martín (Ceryle torcuata), Chucao (Scelorchilus rubecula), Zorzal (Turdus falklandii), Tordo (Cureaus cureaus) and the Cachaña (Enicognathus ferrugineus).

The unit of the National Reserve Lake Carlota (Reserva Nacional Lago Carlota) counts on a rustic refuge and transitory personnel during the months of summer.