Details in this Area: Country: Thailand (Siam) Area: North, North-East (Isan) Province: Phitsanulok, Loei, Phetchabun, Chaiyaphum Cities: Nakhon Thai, Lom Kao, Lom Sak, Khao Ko Islands: National Parks: Phu Hin Rong Kla NP, Phu Luang NP, Nam Nao NP Temple: Mountains: Khao Ko, Phu Luang Others: Khaoko Palace, Phra Cave