Map of the Tarapacá region in the north of Chile indicating the main sites discussed in the text. The Pampa del Tamarugal stretches across the vast internal drainage basin south of the Quebrada de Tana or Camiña as far as the Río Loa.
Isbell, William H.; Uribe, Mauricio I.; Tiballi, Anne; Edward P. Zegarra, 2018, "Visual database", https://doi.org/10.25346/S6/1B33FN.