1979 September, Nai-Ruenn Chen, “Sino-American Trade”, inChina's Economy and Foreign Trade, 1978-79[3], number 3, PRC Affairs Division, Office of East-West Country Affairs, Industry and Trade Administration, U.S. Department of Commerce,→ISSN,→OCLC,page18, column 2:
In January 1979, the Aluminum Company of America agreed to undertake feasibility studies for the construction of two modern integrated aluminum plants inLuoyang, Henan Province, and in Pingguo county, Guangxi Zhuang Autonomous Region.
The remains of the capital of the Eastern Han dynasty,Luoyang洛阳, are situated approximately 15 km east of the present-day city ofLuoyang 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).
2006, “Cultural Relics”, in王琴 [Wang Qin],韩清月 [Han Qingyue],冯鑫 [Feng Xin], transl., edited by杨长春 [Yang Changchun],河南：文化大中原 [Henan: The Central Plains of Chinese Culture] (全景中国 [Panoramic China])[5], 1st edition,Beijing:Foreign Languages Press,→ISBN,→OCLC,page163:
The Longmen Grottoes are located in the south of Luolong District ofLuoyang. Here two mountain cliffs stand face to face, like a pair of natural watchtowers over the Yi River that flow between them, giving rise to the name “Luoyang’s Yi River Watchtower Gate.”
2021 July 21, Ryan Woo, Stella Qiu, “At least 25 dead as rains deluge central China's Henan province”, inReuters[6], archived fromthe original on22 July 2021, China:
Local authorities said the rainfall had caused a 20-metre breach in the Yihetan dam in the city ofLuoyang west of Zhengzhou, and that the dam could collapse at any time.
