>>38393
Quite a variation was in tree sizes, the first pic here >>38386 is kinda a good representation. In picrel here however we can see only fairly young trees. I would judge that fallen oak about 30-40 not long ago I counted - tried at least - an oak's rings, over double but probably not triple the size of that on the pic, was about 90-100, I've other basis for a guess, I know soft wood tends to be thicker, maybe even double. I think some parts of the hillsides were cut in whole back then, some was thinned out since then.
I passed two hazels, which were smaller tree sized, not shrubs, they were left grow quite for a while. Also many trees were fallen over, crossing the trail. Some were cleared, cut up like on the right in pic #2 here: >>38377 From the rot of oaks, I'd estimate 4 years ago tops.
>Why is it here?
Mystery. There's something painted on it, but signs are painted on trees, from tourist trails to forestry borders I dunno what's the point to build something for that purpose. Not to mention rocks also can be used. Maybe they had to be exactly at that point, and other suitable surface might not be present.
Other mystery signposts are made of wood and they held by little mounds of soil or rocks. Close to the top is cut in a 7 figure (if you look at the post from the side it looks like that, as a triangle is cut out) and a number is painted on it. Sometimes the number doesn't make sense, seems random, all less than 100. But other places these posts are placed at every 10 m of elevation on a hillside, and the numbers follow this, from 1 to whatever. Once I searched a bit about it, but didn't put any effort into it, so no answer was found.
>larva for 5 years or such, and only few months in a last bug form.
I did not know that.