古代遺跡　　Ancient Ruins

江戸東京たてもの園と浴恩館には小金井の遺跡から出土した土器などが展示されている。

In Edo-Tokyo Open Air Architecture Museum and Koganei City Cultural Property Investigation Center (Yokuonkan), they exhibit old potteries and other ruins unearthed in Koganei as well as old maps, photos, etc. 

Koganei City is located on the southern edge of the Musashino Plateau and spreads over the Musashino and Tachikawa terraces. The boundary between the two terraces is called the Kokubunji Cliff Line (Hakeはけ), and there are fountains everywhere, and the water pours into Nogawa, which is said to be the remnant of the Tama River in the old days.

It was about 30,000 years ago when people started to live in the Paleolithic period blessed with abundant water and Nogawa , and many ruins are left. On the other hand, the water around the plateau around Musashi Koganei Station is scarce, so no ruins can be seen except in the Sengawa basin. People settled down on this plateau only after Tamagawa aqueduct was built in the Edo period.