overlaps composed primarily of planetary surface natural environment IUCN wilderness area An IUCN protected area which 1) is dominated by natural ecosystems, 2) is sufficiently large to allow those ecosystems to function and develop without local anthropogenic perturbation, 3) is managed to prevent perturbations by proximate or local anthropisation, including those caused by local and/or indigenous human communities or human visitation. Note that this ENVO class is not authoritative: see the associated IUCN references for a complete definition of all Protected Areas. These areas exclude permanent built infrastructure, activities by extractive industries, commercial or intensive agriculture, extensive access by motor vehicles, unregulated visitation supported by any infrastructure, as well as other activities that may lead to significant ecosystem perturbations. IUCN-PACS:Ib wilderness area area protected according to IUCN guidelines