Huanghuachang () is a village in

Huanghua Huanghua () is a county-level city located in the Bohai Gulf coastal region of Hebei province, China. It is under the jurisdiction of the prefecture-level city of Cangzhou. Huanghua is named after Chinese Communist revolutionary Huang Hua. Pre ...

, Yiling, Yichang,

Hubei Hubei (; ; alternately Hupeh) is a landlocked province of the People's Republic of China, and is part of the Central China region. The name of the province means "north of the lake", referring to its position north of Dongting Lake. The prov ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

. An outcrop of sedimentary rock from the Ordovician has made Huanghuachang famous in the earth science community. The "Huanghuachang section" () is an outcrop of the

Dawan Formation The term Dawan may refer to: Places China Towns * Dawan, Chongqing, in Yubei District * Dawan, Gaoyao, in Gaoyao District, Guangdong * Dawan, Guiping, in Guiping district, Guangxi * Dawan, Guizhou, in Zhongshan District, Liupanshui * Dawan, ...

in which the official base of the

Dapingian The Dapingian is the third stage of the Ordovician period and the first stage of the Middle Ordovician series. It is preceded by the Floian and succeeded by the Darriwilian. The top of the Floian is defined as the first appearance of the conodont s ...

stage is defined. (Daping is a settlement near to Huanghuachang). Note: there is an apparent typo in the article referenced; they give the coordinates as "a latitude of 30°51’37.8"N and a longitude of 110°22’26.5"E", but their map and location description better corresponds to 30°51’37.8"N 111°22’26.5"E.

References

Geography of Yichang Village-level divisions of Hubei {{Hubei-geo-stub