The most humid place in Gensokyo, this untouched forest that humans rarely step foot into is the Forest of Magic The distance from the human village is relatively short, but the forest's environment is extremely hazardous to humans, the spores of monstrous mushrooms dance about in midair, and for regular humans, even breathing the air would cause a breakdown in their physical condition. However, the typical youkai will find the place uncomfortable, and it is also a feature of the forest that even youkai refrain from stepping into it. For that reason, if one could stand the noxious gasses that the monstrous mushrooms emit, then on the contrary, it would be both a safe and secretive place to seclude oneself. The forest has areas of ground upon which the sun never shines, making them dark and damp. There are mushrooms here that can be used for food for humans who can stand it, but they don't look very appealing. And also, there are a relatively high number of mushrooms with hallucinogenic properties. In the first place, there are those who call the forest magical only because of its effectiveness in growing hallucinogenic mushrooms.
Since Gensokyo is not that big, there is not much need to bother with place-names. Usually if you mention a forest it's the Forest of Magic, if you talk about a village it's the Human Village, and if you talk about the Mountain it refers to the Youkai Mountain.
~Aya~