I think they added the Gold Forest to have something Gold in the Games besides Ho-oh (who's more Rainbow than gold..). When you consider there is Mount Silver and Silver Cave, but nothing "Gold", it kinda makes sense. Then again it could just be for show.
I wouldn't mind a desert personally. Could be where Larvitar is located pre Mt. Silver. But I do think it looks more like a Golden Forest.
Edit. Yeah I just realized there is Goldenrod City.. but that doesn't count in my book.
I don't care if it breaks the page or anything. People need to get into their thick skulls its a forest. FOREST. With trees. and leaves. That are gold. SEESH!
Basing it off of a fanmade map which is in the least bit accurate is not a good thing.actually sinnoh is in the middle of the ocean based off of pokearth