besna kobila (serbian cyrillic: бесна кобила, , meaning "mad mare") is a mountain in southeastern serbia and small ski center. its eponymous highest peak has an elevation of 1,923 m. it lies 35 km to the east from the city of vranje. there is a mountain chalet besna kobila from where it takes an hour to hour and a half to reach the summit on foot. it is known for its stormy weather, so the best months for climbing are during the warmer part of the year.