Located on the road to Lan Sang Waterfall, the area is one in which Lahu, Lissu and Meo Hilltribes reside. Hilltribe products are for sale at Km 29 on the Tak-Mae Sot High way. Tham Mae Usu. It is necessary to ford the Mae Usa stream in front of the cave to gain access. Doi Mae Ramoeng is some 130 kilometres north of Mae Sot on the Mae Sot-Mae Sariang Highway.
Mountain scenery is particularly spectacular in the morning when mist swirls through the peaks.
The area is rich in wildlife, particularly deer species and numerous types of birds. Amphoe Umphang is 164 kilometres of Mae Sot on Highway 1090. The scenic highway's highest point is some 1,200 metres above the sea level. The winding route takes some 4 hours to complete, particularly during the Rains Season or the Cool Season when mountain mists impede progress. Thi Lo Su Waterfall.