Ruins in Enedwaith

Yesterday in kin-chat, someone asked, who had built the large road and the ruins.

The road seems to have no other name that the "North-South Road". It was built by the Númenórians (Human) and starts (or ends) in Fornost. From there it goes south to Bree somewhere south of Trestlebridge, the vegetation becomes stronger and overgrows the road. Therefore that part is called the Greenway.

In Bree it crosses the old road from Rivendell to the Grey Havens and continues south towards the Andrach (between the South Downs and the Burrow Downs (the word Down or Downs originates from the German/Norse word dun, which means hill, which will also lead us to the Dunlendings and Dunlands).

This part, we can visit in game. About the same length would leed us to Tharbad on the river Greyflood. Tharbad was the bordertown between Arnor and Gondor. The road would first continue South a bit, but then would turn South-East, towards the Gap of Rohan. This was also the road, the Ringwaiths took as they were going to get the Ring in the Shire.

I had hoped to see such a reference in game, but have seen none. Did I miss anything (I admit, I didn't always read all the quest-texts)?

After crossing the river Isen, the road is called the West Road and continues South West and West till Osgiliath.

An other icon is Harndirion. The White Tree of Gondor makes it clear, that it was built by the rulers of Gondor. More details, I couldn't find. It seems unlikly to be a place of war, as it it has neither gates nor other defensive structures. It could be a grave, but why so far in the wilderness? No major town was anywhere near. So it could be the result of a job creation program or a huge "f*ck you" towards the Dunlendings opposing the rule of Gondor.

There was further discussion about the influence of Sauron. This being Saruman's back yard, I would think Saruman is more active here than Sauron.

I doubt Sauron has much use of Humans. Why the Corsairs and Haradrim were eager to join Sauron always felt a bit strange. Perhaps a Mordirith-type is acting in the south as an intermediary.

Saruman on the other hand is known (not to us yet) to be a no-gooder. I would like to fight him in a group of 12 and at all time Sauron uses two of the fellowship to fight against the others member of the group.

Saruman uses Dunlendings to fight the Rohirrim and lots of them were storming the Hornburg. I hope this theme is a bit stronger in the next landmass expansion. I'd also like a counter to be added as there was in the water-works before you could fight the turtle