The stone quarries of ancient Egypt once produced quality stone for the construction of decorative monuments such as sculptures and obelisks. These quarries are now recognised archaeological sites. Eighty percent of the ancient quarry sites are in the Nile valley; some of them have disappeared under the waters of Lake Nasser and some others were lost due to modern mining activity.
Some of the sites are well identified and the chemical composition of their stones is also well known, allowing the geographical origin of most of the monuments to be traced using petrographic techniques, including neutron activation analysis.
Wikipedia https://en.wikipedia.org/wiki/Stone_quarries_of_ancient_Egypt
Address Aswan, Egypt
Coordinates 24°4'37.026" N 32°53'41.989" E
