Cassandra Vivian This is a multi-part message in MIME format. 7bit Mr Wilson, I have studied and written about the aqueduct systems in Kharga, Baharia, and Farafra oases in Egypt's Western Desert in my book Western Desert Handbook. They are all below ground with vents every few meters. Some of these systems run for a distance of 10 or more kilometers. They are found in Egypt at sites that contain an abundant of Roman remains including fortresses and temples.
Some scholars maintain they are Persian.
I have not be able to find any information on these systems.