Details in this Area: Country: Thailand (Siam) Area: North-East (Isan) Province: Loei, Nong Bua Lamphu, Udon Thani, Nong Khai Cities: Suwan Khua, Ban Phu, Khut Chap, Na Klang, Udon Thani, Nong Bua Lamphu, Nong Wua So, Nong Saeng, Nongbua Lamphu Islands: National Parks: Than Ngam NP Temple: Wat Tham Khlong Pen Mountains: Others: Tham Erawan, Tham Mim