Details in this Area: Country: Thailand (Siam) Area: North-East (Isan) Province: Udon Thani, Sakon Nakhon, Kalasin Cities: Nikhom Nam Un, Si That, Thakhanto, Kut Bak, Wang Sam Mo, Kham Muang, Nong Kung Si, Sahatsakhan, Somdet, Huay Mek, Na Mon, Huai Phung Islands: National Parks: Phu Phan NP Temple: Phra That Phu Phek Mountains: Others: Phu Phan Rachaniwet Palace