[4] Among the native plant species present in the park are: Tara spinosa, Vasconcellea candicans, Ismene amancaes, Verbena litoralis, Vachellia macracantha, Heliotropium arborescens, Armatocereus matucanensis, etc.

[4] Some birds found in the reserve are: the Vermilion flycatcher (Pyrocephalus obscurus), the Andean tinamou (Nothoprocta pentlandii), the Black-chested buzzard-eagle (geranoaetus melanoleucus), the American kestrel (Falco sparverius), the Cactus canastero (Asthenes cactorum), the variable hawk (Buteo polyosoma), the burrowing owl (Athene cunicularia), etc.

[5] Some mammals found here are: the Sechuran fox (Lycalopex sechurae), the white-tailed deer (Odocoileus virginianus), occasionally the Pampas cat (Oncifelis colocolo), etc.

[6] Archaeologists have determined the occupation of Lomas de Lachay, at least seven times, corresponding to initially hunting and gathering populations until reaching the current shepherds, also called “chivateros”.

In subsequent historical periods, the hills were deteriorating even more, due to the felling of trees as a source of energy, so that the capacity to support cattle was reduced and this resulted in the sporadic presence of settlers.