Where are the hot springs in Beijing?

It has a long history, and hot springs and their medical treatment are recorded in historical documents such as Shuijing Zhuan (around 500 AD) and Dayuan Tongzhi (around 1300 AD).

Since the Ming and Qing Dynasties, it has become a leisure place for emperors. The existing white marble carved column spring pool was built in the fifth year of Kangxi (AD 1666). During the Qianlong period, there was a palace and a hundred acres of lotus pond surrounded the mountain. The plaque of "Jiuhua Powder Embroidery" carved on the north cliff of Houshan Mountain is the imperial inscription of Emperor Qianlong.

The formation of Xiaotangshan hot spring is controlled by two intersecting faults in the northeast-southwest direction and northwest-southeast direction exposed in dolomite limestone. The original hot spring 1 1 eye, more than 6000 tons of flowing water day and night. Among them, Dongxiquan is in a sanatorium, which is also the most famous. In the past, the amount of self-flowing water was about 900 tons every day and night, and the water temperature was 48 and 52℃ respectively.

The octagonal area of the spring pool has reached 100 square meter, and the pool surface is surrounded by hot fog. A string of bubbles, such as jade beads, keep floating out of the Ran Ran in the water, splashing a lot of water on the surface of the pond, which is unique. Unfortunately, in the last 10 year, the natural spring has dried up, and the famous East-West Spring Pool has to rely on the water extracted from the borehole to keep its old appearance.

Hot springs:

(Hot spring) is a kind of spring water, which gushes naturally from underground. The temperature of the spring mouth is obviously higher than the local annual average temperature, and it contains mineral water with trace elements beneficial to human health.

There are also many areas where wells are drilled manually, generally 600~2000 meters. Groundwater is pumped by deep water pump and is rich in many beneficial minerals. The water temperature is generally above 20 degrees Celsius, also known as hot spring well. Because of the different climate, latitude and altitude, it is difficult to unify the lower temperature limit of hot springs.