Jon wrote: So the walls are like our wire fence here, guess that was the way back then.
A lot of work but the fields probably needed stone clearing to cultivate anyways.
Just realised I hadn't replied to this.
Wire is made of iron. These walls were probably first erected before iron was invented. But yes, as the area was once carved by glaciers, it would have had to be cleared of the stone debri as well.
I wondered about the lack of trees in your pictures, animal grazing seems to be the reason. I keep telling the neighbors if you graze the land no new trees will make it past the hooves. Once the elders are gone so goes .....
The few trees that do grow tend to be short and hardy things. Pine never made it to this area. There is not much topsoil in those parts either. Even grass cannot grow on the upper slopes of these hills. Crops and trees do not grow well. It is a cold wet area most of the year. Sheep are the only things that can do well in this area. These days the farmers need heavy funding to remain in business. But because without them the landscape would be spoilt it is cheaper to pay them to stay farming and maintain the area.