Byeolmaro is a public astronomical observatory built on the peak of Bongnaesan Mountain (alt. 799.8 m) in Yeongwol. The term ‘Byeolmaro’ combines the words byeol (star), ma (peak) and ro (peaceful). Together, they collectively represent the wish to view stars in a clean and peaceful environment. The observatory has a variety of telescopes, including one with a diameter of 80 centimeters. The observatory also has accommodation facilities, audio & visual rooms, and a lecture hall, making it suitable for educational programs.