I’m sure I’ve posted links to his vids as topics before, but I couldn’t turn up one. The keyword contains (or will) just this topic and one from the Trek Planner.
More results:
https://www.youtube.com/results?search_query=andrew+cross
associated/related channels:
https://www.youtube.com/@TheTrekPlanner/videos
https://www.youtube.com/@the_pov_channel/videos
I remember one where he was investigating a horizontal line stretching over many miles, I think involving a hilltop cairn and some markings on a cliff wall.
Within the last six months, I believe.
I noticed because he was pretty good with his drone footage.
https://freerepublic.com/focus/f-chat/4277117/posts
this is the one I remember:
https://freerepublic.com/focus/f-chat/4267962/posts