Yilong Cave

{{Short description|Cave in Pingxiang, Jiangxi, China}}

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| name = Yilong Cave

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| location = Pingxiang City, Jiangxi Province, People's Republic of China

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| length = {{convert|4,200|m|ft}}

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Yilong Cave ({{zh|s=义龙洞|t=義龍洞|p=Yìlóng Dòng|l=righteous dragon cave}}) is a 180-million-year-old karst cave located in Pingxiang City, Jiangxi Province, People's Republic of China.{{Cite web|url=http://www.jxslx.gov.cn/content/show.asp?id=3568&lmid=48|title=Yilong Cave|publisher=Shangli County People's Government|language=zh|access-date=February 12, 2011}} Also known as Nielong Cave (孽龙洞/孽龍洞 literally evil dragon cave), the cave extends to around {{Convert|4200|m|abbr=on}} in length. Inside there are unusual rock formations, small streams and waterfalls.