A large waterfall that pervents boats from passing
A cataract is like a waterfall.
Aswan
there are 6 cataracts in ancient Egypt
a cataract is steep rapids formed by cliffs in a river.
Abydos was located in Ancient Egypt, above the first cataract (waterfall) of the nile. Its symbol was a hill, surmounted by two feathers. It was the 8th nome of Ancient Egypt.
a cataract is steep rapids formed by cliffs in a river.
Since the first cataract is at Aswan, the area north of it is Egypt.
About 900 miles
The dams are named after the near-by city of Aswan which is on the first cataract of the Nile in Egypt. Its ancient name was 'Swenet' that translates as "trade".
Aswan,It stands on the east bank of the Nile at the first cataract and is a busy ... Aswan is the ancient city of Swenet, which in antiquity was the frontier town ... the Nile in the south, Swenet was the first town in the country, and Egypt
Nubia.The southern part of it to the southern end of the second cataract of the Nile was called Cush (Kush) under the 18th-dynasty pharaohs of ancient Egypt and called Ethiopia by the ancient Greeks.
Ancient Egypt was built around the Nile River. The river served as an artery of transportation wherever possible. However, at a number of places, rapids or cataracts prevented river traffic. In those places boats had to be taken from the river and moved around the cataracts and the relaunched on the other side. They could also be unloaded and then different boats reloaded beyond the cataract. The ancient Egyptians did not have the technology to develop locks.