Wat Khok Sung, or the Monastery of the High Mound, was situated off the city island in the southern area of Ayutthaya in the Samphao Lom Sub-district (1).
The site can be found along road No 3469.
In situ is a high brick mound covered in vegetation.
Wat Khok Sung stood east of Wat Thong and north of Wat Wihan Khian.
The monastery was about 200 meters off the east bank of the Khu Cham (2).
Its historical background and period of construction are unknown.
The site is mentioned on Phraya Boran Ratchathanin's map of 1926 CE and found on all Fine Arts Department maps.
Wat Khok Sung is in geographical coordinates: 14° 20' 33.28" N, 100° 33' 57.13" E.