The Zagros Mountains form the largest mountain range in Iran. It stretches from northeastern Iraq for about 1'550 kilometres to the Strait of Hormuz. The highest peak of the Zagros Mountains is known as Oschtoran Kuh (4'550 m).
Iran 1954, city of Hamadān.
Hamadān is the capital city of the Hamadān Province. To its southwest is the Kuh-e Alvand. Kuh-e Alvand is a subrange of the Zagros Mountains. Its highest summit is also known as Alvand (3'570 m).
Sefid-Kooh is a mountain chain of the Zagros Mountains and situated in the north of the city Khorramabad. Its highest peak is 2'805 metres above sea level.
The Shapouri bridge is situated about 2 km in the south-west of Khorramabad and to the west of the old city of Shahpour Khast. It is one of the master-pieces of architecture in bridge construction of the Sassanian period (224-661 AD). The bridge comprised 28 arches of which only 6 have been remained and have an elevation of 16 metres.
Iran 2014, Doab Bridge and Lajvar Mountain.
The stamp was issued in addition to the definitives series "bridges" and depicts an old bridge in the Markazi Province. It is located about 40 kilometres in the west of the city Arak, along the Arak-Borujerd Highway (No 56) next to the small settlements Tahte Mahal and Mahdi Abad (34° 2' 46.98" N 49° 21' 10.84" E). The mountain in the background is known as Lajvar Mountain (2'620 m). It rises about 800 metres above the surrounding area.