We conclude this mini-survey of Khmer sites in Isaan with two additional sanctuaries located in Surin Province near the Cambodian border: Prasat Sikhoraphum and Prasat Ban Phluang, each with its own somewhat distinctive qualities. They are presented here in reverse chronological order; Sikhoraphum actually dates from the 12th century, while Ban Phluang was built in the late 11th century.