[2] The reserve is located in the region of Ica, 250 km south of Lima, and a few kilometres from the town of Pisco.

[2] Precipitation is scarce and occurs in winter, falling mostly on the top of the highest hills, which is vital to the lomas ecosystem.

[6] Some terrestrial plant species found in the reserve are: Tiquilia paronychoides, Prosopis pallida, Distichlis spicata, Tillandsia spp., Eriosyce omasensis, Geoffroea decorticans, Sesuvium portulacastrum, Cressa truxillensis, Geranium limae, Suaeda foliosa and Oxalis carnosa.

[7][8][5][4] Marine algae found in the reserve include: Ulva lactuca, Chondracanthus chamissoi, Macrocystis pyrifera and Pyropia columbina.

It is estimated that there are about 216 species of birds, 36 of mammals, 10 of reptiles, 168 of fish and a large number of invertebrates that are an initial part of the trophic chain of this important place.