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Strict nature reserve
Highest category of protected area recognised by the WCPA / From Wikipedia, the free encyclopedia
For areas not part of the IUCN classification system, see Wilderness area.
A strict nature reserve (IUCN category Ia) or wilderness area (IUCN category Ib) is the highest category of protected area recognised by the World Commission on Protected Areas (WCPA), a body which is part of the International Union for Conservation of Nature (IUCN). These category I areas are the most stringently protected natural landscapes.
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