The Sar Ein or Sar Ghein village, a district of Irdimoosi village, is located in the west of Ardabil city and is only 28 kilometres from the city of Ardabil and 6 kilometres from the Ardabil - Tabriz road. The hot mineral waters of Sar Ein are products of the volcanic activities of Milan mountain. The following lists the most important spas of this region.
1- Gavmish Goli (buffalo pool) hot mineral water is the biggest hot mineral stream of Sar Ein. The temperature of the water is 45 degrees centigrade, its PH is 5.8 and its electrical conductivity at 20 degrees is 1450, and finally its output is about 30 liters a second.
2- Ghara Sue (black water) hot spa with a water temperature of 141 degrees centigrade and a PH equalling 6. Its electrical conductivity at 20 degrees is 1450 and its output about 1.5 liters a second.
3- Sari Sue hot spa (yellow water)- The water temperature of this stream is 47 degrees where it pours out and 44 degrees in the pond, the PH is 6.2, its electrical conductivity at 20 degrees is 1350 and its output is about three liters a second.
4- Gazal hot water spring, with a temperature of 43 degrees in the pond and a PH equal to 6. Its electrical conductivity at 20 degrees is 1440 and its output is about 1.5 liters a second.
5- Ab Cheshmeh, with an output of about 6 liters a minute is used as remedy for eye diseases. Its temperature is 21 degrees and its PH 5.2.
There are other hot water spas like Besh Baji Lar and Ghahveh Khaneh Hemmat which are classified as gaseous Chloro Bi- Carbonated Calcic waters containing a good amount of silica. Considering the electric conductivity, all these spas appear to have one single origin in the very depth of the ground. When streaming up some Calcium Carbonate is added to it.