The
Bükk National Park is a national park in the
Bükk Mountains of Northern Hungary, near
Miskolc. It was founded in 1976 as the third national park in the country. It contains 431.3 km² (of which 37.74 km² is under increased protection).
Mountainous and
forested, Bükk is Hungary's largest national park and is situated in the northern mountains, between Szilvásvárad and
Lillafüred. Bükk's important geological features include various
karst formations within its limestone mountains - particularly
caves (once inhabited by pre-historic people), swallow-holes, and ravines. The country's longest (4,000 metres) and deepest (245 metres) cave, Istvánlápa, is located in the park. Bükk National Park also contains ninety species of nesting birds, some considered endangered.