The deity of the earth in Chinese religion, paired with Heaven in the oath phrase 皇天后土. Emperors made sacrifices to Houtu from the Han dynasty on, and Daoism worships the deity as a goddess.
Shānxī Wànróng de Hòutǔ cí shì Zhōngguó zuì gǔlǎo de Hòutǔ miào zhīyī.
The Houtu Temple in Wanrong, Shanxi is one of the oldest Earth Deity temples in China.
Tips
mistakes
The 后 here is not 'after' but the character's ancient sense, 'sovereign', as in 皇后 'empress' and the archer 后羿. So traditional script writes 后土 with 后, never with 後 'behind'.
history
The 后土祠 (Houtu Shrine) in Wanrong County, Shanxi was a major imperial sacrifice site from Han to Song dynasties - emperors would travel there to perform earth-veneration rites.