[2] Ogura Castle is located on a 70-meter high ridge overlooking a U-shaped bend in the Tsuchigawa River in the western part of Hiki District of Saitama Prefecture.

The Tsuchigawa River flows from eastern edge of the Chichibu Mountains, forming the border between the towns of Ogawa and Ranzan.

Aside from these core areas, the castle had many terraces on the slopes of the ridge and dry moats to obstruct the advance of any enemy.

The Ueda were descendants of one the seven main bands of samurai in Musashi Province and were important retainers to the Ogigayatsu Uesugi clan in the latter half of 15th century.

The Ueda later switched fealty to the Hōjō and as a result were attacked and defeated by Uesugi Kenshin, who seized Musashi-Matsuyama Castle in 1560.