Dena (in Persian: دنا) is a mountain range within the Zagros Mountains of West/Southwestern Iran. Dena is a part of the Zagros mountain range, situate on the boundary of the Isfahan, Kohkilooyeh Va Boyer Ahmad, and Chahar Mahal Va Bakhtiyari provinces. Other famous peaks in this range include Kal Ghedvis, Ghash Mastan (Bizhan 3), Bizhan 2, Bizhan 1, and Pazan Pir. dena is in the sisakht city .