The First Cataract on the Nile River

March 14, 2019

NileatAswan_20150130_135907 (1)

Photographer: Kamal Abou Elmagd 
Summary Authors: Kamal Abou Elmagd; Jim Foster

The Nile River is shown above passing the granite islands that form the first cataract at Aswan City, Egypt. Cataracts occur where outcrops of granite, as well as other resistant rocks, reach the banks of the Nile River. They not only constrict the flow of the river (limiting agriculture since the flood plain is almost nonexistent) but also impede navigation. The first cataract, one of the six classic cataracts along the Nile (there are many more), was well-suited for a dam site -- the Aswan Dam was built here between 1898 and 1902.

This is one of the most beautiful spots on the lower Nile. Tourists ride flouka (wind boats) along the river, visit botanical gardens and the protected islands of Saluja and Ghazal (a natural reserve area of Egypt) and revel in the ancient history that Aswan City and its environs have to offer. Photo taken on January 30, 2015.

Photo Details: Camera: SAMSUNG SM-G7102; Exposure Time: 0.0008s (1/1188); Aperture: ƒ/2.4; ISO equivalent: 40; Focal Length (35mm): 31.