What are some densely forested regions in Nippon in or around Kanto?

Question:

Again; more research for my RP ^^;
Thanks again so very much for your help in advance~ =)

Answer:

All the mountainous areas around the Kanto area are densely forested.
There is Tanzawa to the west (Sagami Pref.), Okutama north of that (Tokyo) , Chichibu to the north of that (Saitama Pref.) then Myogi-Haruna-Akagi (Gunma). I do not know much about Tochigi but it will be much the same. Just look on a map.