The Romanian Plain of today is one of the most disfigured territories, due to the socialist exploitation of the land (mainly by draining and deforestations); consequently, it is impossible to make a historical assessment only on things today visible in the landscape. I tried to use all resources at hand, beginning with medieval documents and pursuing with cartographic depictions of several generations, place names and pedology, as much as an archaeologist can deal with them. The final answer is far simpler than expected: not all the sectors of the frontier were closed by manmade obstacles, because they were already secured by natural items, either thick forests or unexplored marshes. The only needed proof for a Roman boundary is the road running along the frontier, but this is difficult to prove on a field completely devoid of stone. I am suggesting also wooded barriers made of cut trees left on the spot, but such an obstacle leaves no archaeological traces.
Environmental impact in building a new frontier/Influența mediului în definirea unei noi frontiere