Are there any larger "wild" forested areas left in continental Europe, where a group of people could (in theory) sustainably live as hunter-gatherers?
Looking at maps of forested areas, I struggled to find a larger area with enough supposed wildlife where I could imagine a group of (say) 100 people could sustainably survive just hunting wild animals and picking berries. Perhaps the Carpathian mountains in Romania and Ukraine? What about Western Europe (France, Germany...): anything there that could in theory work?
Ps: by "large enough", I also mean large enough not to run into "regular people". I.e. is there any wilderness left in continental Europe, where a group of (say) 100 people could live in at least (say) 20km by 20km area of nature, without regularly being disturbed by tourists and hikers?