Where is Nam Khun?

Nam Yuen13.5 km · 8.4 mi → Thung Si Udom20.6 km · 12.8 mi → Na Chaluai35.0 km · 21.7 mi → Amphoe Det Udom38.0 km · 23.6 mi → Det Udom43.5 km · 27.1 mi → Samrong49.2 km · 30.6 mi → Na Yia56.7 km · 35.2 mi → Buntharik56.9 km · 35.4 mi → Amphoe Warin Chamrap63.3 km · 39.3 mi → Warin Chamrap71.1 km · 44.2 mi → Amphoe Phibun Mangsahan75.3 km · 46.8 mi → Ubon Ratchathani76.2 km · 47.3 mi →

Amphoe Det Udom14.85153, 105.07511 → Amphoe Phibun Mangsahan15.14589, 105.24094 → Amphoe Sawang Wirawong15.23439, 105.07600 → Amphoe Warin Chamrap15.12394, 104.87499 → Buntharik14.70495, 105.40444 → Det Udom14.90598, 105.07836 →