Ten kilometres from Bang Khamoad (today's
Ban Mo district) there is a big pond. The west side of the pond has a big tummy-wood tree (
Careya sphaerica Roxb.) or in Thai
Kradon (ต้นกระโดน). The people from Dong Noi and Kokko and
Mueang Lop Buri moved to here and established the village Ban Nong Kradon. When the village grew bigger, the government created a separate minor district (
king amphoe) Nong Don on 15 July 1968, when the three
tambons Nong Don, Ban Klap, and Don Thong were split off from
Ban Mo district. The minor district was upgraded to a full district on 21 August 1975. ==Geography==