Sialan (Persian: سیالان) is a mountain peak in Alborz range in Iran. The peak is located at an altitude of 4,250 metres (13,940 ft), overlooking the valley of Duhezar and Daryasar plain in Tonekabon county to the north, and the Alamut valley and Heniz in Qazvin County to the south.

Map of central AlborzPeaks:1 Alam-Kuh
−25 to 500 m (−82 to 1,640 ft)500 to 1,500 m (1,600 to 4,900 ft)1,500 to 2,500 m (4,900 to 8,200 ft)2,500 to 3,500 m (8,200 to 11,500 ft)3,500 to 4,500 m (11,500 to 14,800 ft)4,500 to 5,610 m (14,760 to 18,410 ft)2 Azad Kuh3 Damavand
4 Do Berar5 Do Khaharan
6 Ghal'eh Gardan7 Gorg
8 Kholeno9 Mehr Chal
10 Mishineh Marg11 Naz
12 Shah Alborz13 Sialan
14 Tochal15 Varavašt
Rivers:0
1 Alamut2 Chalus
3 Do Hezar4 Haraz
5 Jajrood6 Karaj
7 Kojoor8 Lar
9 Noor10 Sardab
11 Seh Hazar12 Shahrood
Cities:1 Amol
2 Chalus3 Karaj
Other:D Dizin
E Emamzadeh HashemK Kandovan Tunnel
* Latyan Dam** Lar Dam

Climbing

The level of difficulty is "walk-up" and the nearest village is Haniz to the south. There is also a hut at 3,270 m for hikers coming from the Southern valley (the direction of Haniz).

Mount Sialan: +36° 30' 42.6", +50° 41' 55.2", 4185 m and Sialan shelter: +36° 30' 21.10", +50° 40' 9.10", 3271 m