Three cacti are endemic to the northern part of the Atacama Desert; they are Eulychnia iquiquensis, Neoporteria sensu, and Copiapoa.
Sparsely populated and virtually rainless, the Atacama Desert forms a narrow strip on the coast of Chile, between 600—700 miles long.
The Atacama Desert of Chile covers the northern third of the country stretching more than 600 miles (1,000km), and straddles the southern border of Peru.