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= Cairo Petrified Forest = Cairo Petrified Forest (CPF), also known as Qattameya Petrified Forest and Maadi Petrified Forest, is a 7 km² protected area located in New Cairo. It is one of the twenty four declared Egyptian Protectorates. It was declared as a Protectoaret in 1989. It represents an exquiste scientific, touristic and cultural Egyptian landmark. The forest was studied by many geologist and paleontologists over the past one and a half century resulting into a great archive of publications on its origin, history, geology, and paleo-biodiversity.

Location
Cairo Petrified Forest is located in the Eastern Desert, 20 km East of Cairo near Qattamiya city and Ma'adi city, 1 km away from the old toll stop on old Ain Sokhna Road. It occupies an area of 7 km² between long. 31° 27′ 30″ and 31° 28′ 30″ E and lat. 29° 58′ 30″ and 29° 59′ 40″ N.{ "type": "FeatureCollection", "features": [ {     "type": "Feature", "properties": {}, "geometry": { "type": "Point", "coordinates": [ 31.457015984924517,         29.99089109750716        ]      }    }  ] }

Geology
The area represents an extension of the Eastern side of Gebel Mokattam which was which intensively studied along with its quarries by every nineteenth century geologist to visit the country because of its close proximity to Cairo.

History
The Petrified Forest's remains used to extend over an area of 300 km² on the area from Qattamiya towards Suez in the east. Unfortunately, dure to growing construction works and irresponsible human activities, the name Petrified Forest currently refers only to the protected reamining 7 km² that were declared a natural Reserve by decree 944/1989.

Describtion
Based on the most recent paleobotanical studies, the forest remains consist only of a large number of silicified huge tree trunks, there were no other plant parts (no leaf, seeds, or fruits remains). These tree trunks are either positioned horizontally on the surface or buried partly or completely by sand or basalt sediments, inside -and outside- the protected area.

Both the exposed tree trunks inside the protectorate and the ones that were overlain by basalt outside it are considered to be exclusively of early Oligocene age and belong to and lay within the Gebel Ahmar Formation.

Paleoenvironment
According to the collective findings of the paleobotanical studies, the anatomical features of the studied specimens show that these silicified woods grew under tropical or sub-tropical continental conditions, and that they were transported to their current position in the Cairo Petrified Forest and its vicinities, most likely from their original site of growth to the east after an ancient river stream carried them to where they are now. The evidences also suggests that they fossilized after transportation.