Tone River
Gyōda is located in north-central Saitama Prefecture, with the Tone River separating it from Gunma Prefecture. The entire city is located on the alluvial plain of the Tone River and the Arakawa River. The altitude is 19.7 meters above sea level (Gyoda City Hall), and the city as a whole is around 20 meters above sea level. The highest point is 36 meters above sea level (in Saitama Kofun Park).