The Wakamiya remains were located at the foot of Mt. Fuji where many small valleys were formed and the terrain was covered with continuous tongue-shaped plateaus and was just the right living environment for mammals.
富士山麓にあるこの遺跡では、小谷が多く形成され、舌状台地が連続する地形こそ、哺乳動物の生息に適した場であった。