The geographic area of the IPR covers the municipalities of Madalena (specifically the civil parishes of Madalena, Candelária, Criação Velha and Bandeiras), São Roque do Pico (parishes of Santa Luzia, Prainha and the locality of Baía de Canas), and Lajes do Pico (specifically in the parishes of Piedade, and the localities of Engrade and Manhenha), as well as areas throughout the island 100 meters above sea level.