Fang speculative rise is at Amphoe Fang, 163 kms. north of Chiang Mai along the Chiang Mai - Tha Ton Rd., (Highway No. 107) cast left at km. 153 owing to 11 kms. to embargo Pin. In a 10-acre forest clearing, there are about 50 chancy springs. Three boil continuously with a strong smell of sulphur. bedew hot spot ranges between 90íC and 100 íC