関東平野
Tōnoshō is located in far northeastern Chiba Prefecture approximately 55 kilometers from then prefectural capital at Chiba and 80 to 90 kilometers from central Tokyo. It is bordered to the north by the Tone River, which also forms the border with Ibaraki Prefecture. The area is part of the Kantō Plain and is mostly flat, and much is from 40 to 50 meters above sea level in average elevation.