Ostredok (1,596 m above sea level) is the highest hill of the Great Fatra, at the same time in the National Park Veľká Fatra. It lies in the main ridge of the mountain. It has two peaks, the main southern (1,596 m above sea level) and a few meters lower north (1,593 m above sea level). The peaks are luminous, providing an undisturbed circular view. The slopes of Ostredok are smoothly modeled, steep, in winter there is a danger of avalanche dropping.