Around Susquehannock State Forest. Now since then I redrew the entirety and now it consists of a lot smaller (around 50-100 sq km big) multipolygons. The entire green blob in the middle is problematic in this case. I’m currently working around Williamsport (Lycoming County).

Thank you for all your feedbacks :) I feel like i did something great to the community.

Updated it just a half an hour ago.

https://github.com/kunattila1/presentations/blob/master/OSM/EN/210329%20-%20Mapping%20R%C3%A1kospalota%20professionally.pdf

Just finished it right away.

I’m walking too :)