About four kilometers from the park headquarters, near the cliffs, is a field of nodulated stone, Whose lumps are roughly equal in size. It is believed that this formation resulted from physical and chemical erosion.
Patients from the hospital suffering from fever would used the area as a rest spot, as a cool breeze blows over the area almost continuously.
Address: Amphur Nakhon Thai, Phitsanulok, Thailand 65120
Driving Directions (Road Map): Phitsanulok to Phu Hin Rongkla National Park
Driving Directions (Road Map): Bangkok to Phitsanulok
Phu Hin Rong Kla National Park อุทยานแห่งชาติภูหินร่องกล้า in Phitsanulok
