Tham Mae Usu

Mae Usu Cave

Useful Information

Location: 15 km north of Amphoe Songyang and 95 km NNW of Mae Sot. Signposted from, Mae Sot., and is a major tourist attraction
Classification: SpeleologyKarst cave
Light: LightIncandescent Electric Light System
Dimension: L=1,586 m, VR=41 m (plus 60 m + karst fenster), A=125 m asl.
Guided tours:  
Bibliography: John D Dunkley (1995): The Caves of Thailand, p 64
(2003): , Shepton Mallet Caving Club Jl Ser 11 (3) Spring 2003 pp 92, 94, survey and 6 colour photos.
Address: Tham Mae Usu, Mae U Su, Tha Song Yang District, Tak 63150.
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
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The show cave entrance is 20 m wide and 5 m high in one side of an impressive sink hole. A large streamway can be followed to a wooden ladder leading up into impessive fossil chambers which eventually lead back down to the resurgence entrances. All the water in the cave is very warm, about 30 °C, and is probably the result of geothermal heating.

Text by Tony Oldham (2004). With kind permission.