Back محمية طبيعية شديدة Arabic কঠোর প্রকৃতি সংরক্ষণ Bengali/Bangla Strogi rezervat prirode BS Strict Nature Reserve/Wilderness Area German Loodusreservaat Estonian ذخیرهگاه طبیعی محدودشده Persian Tiukasti suojeltu alue Finnish Réserve naturelle intégrale French שטח פתוח HE Strogi rezervat Croatian
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.