Sayyalan peak is one of the western Alborz highland peaks and is located on the main ridge between two valleys, Alamut in south and Dohezar in north. Topography of Sayyalan Peak is joined to 3950 meters "Kandygan" peak from the west  and then to "Gay Jakyn " and " Khashchal ". from the east is joined to 3650 meters "siah" peak and "salambar" . Although one of the most important ways to achieve top is Deh Henyz in depth along the southern valley of Sayyalan, but the way of Gazarkhan to Khoshke chal  would have to be seeing a lot along the way .