The Nuwa Spring in Tongguan is located on the East Mountain of Tongguan, which is also known as Nuwa Mountain. Legend has it that Nuwa created humans from clay here, hence the name "Nuwa Spring". The water of the Nuwa Spring in Tongguan contains more than ten kinds of minerals such as boric acid, orthosilicic acid, strontium, etc. It has high medical value and has health and skin care effects on the human body.