Covering an area of 97437 ha, this region is located In Markazi Province and was designated protected area in 1973. It is a mountainous area with rolling hills and plains in the north and west located adjacent to Mighan Kavir. The attitude range of 1580 to 2960 m, and mean annual precipitation of 340 mm have led to temperate arid and cold semi-arid climates. Temperature falls to -25oC in the winter and rises to 40°C in the summer. Topographic structure and climatic diversity have given Haftad Gholleh a variety of sites and high biodiversity, The vegetation mainly includes astragal, succory, cousinia, wormseed, summer cypress, mint, bleeding heart, fritillary, tulip papaver, carnation) borage, acanthofyllum, milfoil, thistle, and devil's milk, Haftad Gholleh boasts a rich and diverse wildlife and has long been one of the most important game parks. Some animals of the region include wild goat, wild sheep, goitred gazelle, wild boar, wolf, wild cat, leopard, badger, Kuhl's pipistrefle, Geoffroy's bat, chukar partridge, turtle dove, bee eater, shore lark, golden eagle, kestrel, buzzard, hobby, black bellied sandgrouse, little owl, greater shrike, northern wheatear, rock bunting, magpie, rock nuthatch, blackbird, saw-scaled viper, Persian horned viper, Levantine viper, checkered cat snake, monitor, and spur-thighed tortoise. Proximity to the Arak-Qom main toad and the preeence of natural attractions and rich wildlife, have made the region suitable for tourism as well as scientific and research activities.