Mount Auxentius (also known as Mount St. Auxentius, Mount Auxentios, or Mount Scopas), today known as KayÃ±à  DaÃÂñ in Turkish, is a mountain located in the eastern outskirts of Istanbul, Turkey, in Kayñà ÂdaÃÂñ neighborhood. Its summit is 428 metres above sea level. The mountain is named after Auxentius of Bithynia.
The mountain was home to Christian monks and ascetics during the Byzantine period. Byzantine Christian monks who lived on the mountain included Saint Stephen the New ( 713âÂÂ764) and Saint Macarius of Mount Auxentius (died 768).