The road across the desert from Coptos was 258 Roman miles long, or eleven days' journey.
Three hundred years ago three legions would have patrolled this area, with a fortress every Roman mile.
Pliny gives the circuitus reported by Pytheas as 4875 Roman miles.
The most important was that there was a town about twelve Roman miles away.
In ancient Rome the league was standardized to be 1.5 Roman miles.
The ground around the castle had been cleared and plowed for a Roman mile.
They marked the distance between two towns, and were placed at intervals of one Roman mile.
It is a Turinese suburb taking its name from the distance from that city, which amounted to seven Roman miles.
It covered a total distance of about 1,120 km (696 miles / 746 Roman miles).
Relay stations were located along the roads every seven to twelve Roman miles, and tended to grow into a village or trading post.