Roman Fort Picture
A typical plan of a Roman fort from about 50 BC to 200 AD. The best examples are near Hadrians Wall on the border of Scotland and North England, where there are remnants of seventeen forts. There are also surviving examples in Germany, Scotland, the Middle East, and North Africa.
Many Roman forts on the outskirts of the empire started as nothing more than tents surrounded by a wood fence on a mound of dirt called a "rampart". A deep ditch was dug surrounding the fence. This dirt was used to help make the rampart. Whenever possible, the back side of the fort would back up to a river for water, defense, and travel.