Fog in the mountains in Chiang Rai

Chiang Rai - North Thailand
Hot water wells in Chiang Rai,  North Thailand

I was making a motorbike tour in North Thailand and Seen while riding from Chiang Rai town in direction of Doi Mae Salong. And just before you really go in to the mountains you see this on your left hand side. The fog is created by the hot water from the wells.