Mount Bistra (Бистра) is one of the most interesting mountains in the Republic of Macedonia. The mountain has many peaks higher than 2,000 meters and the highest one is Medenica Peak, 2,163 meters above sea level. Limestone erosion on the mountain created limestone fields. On the limestone area on Bistra Mountain, there are fourteen limestone fields: Tonivoda, Govedarnik, Bardaš, Sultanica, Solomunica, Suvo Pole, Small and Big Brzovec, Čukni Topanica, Lower and Upper Poljce, Tri Bari, Tri Groba, and Lazaropole. The most popular caves on the mountain are Alilica and Kalina Dupka. A large part of the mountain is included within the boundaries of the National Park Mavrovo.
