Around five hours and 165km of winding mountain-top road south of Mae Sot, lies Umphang; a blip of a village that would be completely unknown was it not the launch pad for Thailand's largest, and most impressive waterfall, the mighty Tee Lor Su waterfall.
Umphang has maintained most of its natural charm and around town there is still very much a lifestyle which many travellers associate with yesteryear. Small market vendors are dotted around, and the majority of the people work in the local rice paddies.
(http://www.travelfish.org/location/thailand/northern_thailand/tak/umphang)