Definition of "Luo"

The remains of the capital of the Eastern Han dynasty, Luoyang 洛阳, are situated approximately 15 km east of the present-day city of Luoyang in Henan. Since the site is bordered on the north by the Mangshan 邙山 Mountains and overlooks the Luo River to the south, it has protective natural barriers and is also at an important junction for transportation and communication (fig. 37).

1982, Zhongshu Wang, “Luoyang: The Capital City of Eastern Han”, in K. C. Chang et al., transl., Han Civilization‎, Yale University Press, page 29

Several dozen animals have died and villagers are suffering nausea and dizziness after a massive spill of cyanide into the Luo River in Henan province.

2001 November 6, Josephine Ma, “Villagers ill after river poisoned by cyanide”, in South China Morning Post‎, archived from the original on 04 September 2023‎