[Retric]

The thing is only one and a half foot tall on average and has ~1500 stones, so rather than moving large stones they could have simply incorporated large stones that were in useful locations. It’s an artificial structure, but they didn’t need to move every stone just most of them.

I wouldn’t be surprised if a small hunting party could have saved time after building it because it lasts a lifetime and people hunted regularly. However, reducing the number of failed hunts was probably more important than making hunting more efficient. The transition to farming was a major increase in effort for a consistent food supply, this is could have been an in between step.

[RecycledEle]

> The thing is only one and a half foot tall on average

Stone walls tend to be taller when built, and then decay over thousands of years.

[Retric]

Many stone walls ~1/5th this age are still roughly intact. Surprisingly long sections of Hadrian’s wall would still be useful defensive fortifications.

This is a field of rubble but you can roughly figure height from the stones that remain.