This reservoir is located in Camp Son, Khao Kho District, Phetchabun Province. The entrance is situated approximately 110 kilometers along the Phitsanulok-Lom Sak road. After turning off the main road, you will drive about 1 kilometer to reach the reservoir itself. This earthen dam has a capacity of approximately 7.52 million cubic meters and features an overflow design. Its primary purpose is to help retain water and prevent flooding for local residents during heavy rainfall, while also storing water for future use.