03/02/2023
In 1962, the Bulgarian authorities created the Vihren National Park in the highest part of the mountains. At first, the territory of the park was 62 km², which was less than 1/6 of its modern area.
After 12 years, the park was renamed, and its boundaries were significantly expanded. In 1983, UNESCO included the unique highland landscapes of the Pirin National Park in the World Heritage List. The last expansion of the park area was carried out in 1998.