Hongshan Reservoir
{{Infobox body of water
| name = Hongshan Reservoir
| native_name ={{native name|zh-Hans-CN|虹山水库}}
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| coordinates = {{coord|26|15|17|N|105|56|01|E|type:waterbody|display=inline,title}}
| type = Artificial lake
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| length = {{cvt|2.0|km}}
| width = {{cvt|0.5|km}}
| area = {{cvt|54|ha}}
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| pushpin_map = China
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| pushpin_map_alt = Location of the lake in China
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Hongshan Reservoir ({{zh|s=虹山水库|t=虹山水庫|p=Hóngshān Shuǐkù}}) is a small artificial lake in Anshun City, Guizhou province, China, used for water retention on a branch of the Dabang River. Its dam was built in 1958, and it reached capacity in 1959. It was given a makeover in 2017 and is now surrounded with park landscaping where possible, and has amenities such as art installations, boardwalks, recreational paths, pedestrian bridges and picnic areas. In 2020 it was the site of the Anshun bus crash, when a bus veered off the dam road, down the viewing steps, and into the water.{{cite news |author1=Tang Ailing |author2=Deng Mushen |author3=Han Wei |title=Bus Crash Into Guizhou Lake Kills 21 People |url=https://www.caixinglobal.com/2020-07-08/bus-crash-into-guizhou-lake-kills-21-people-101576823.html |accessdate=8 July 2020 |work=caixinglobal.com |date=7 July 2020}}; {{cite news |author1=Lyv Fan ({{lang|zh|吕凡}}) |url=http://news.ifeng.com/c/7xudl8Eo3Ye |script-title=zh:贵州安顺载高考生的大巴车冲进水库 现场已救出18人 |work=ifeng.com |date=2020-07-07 |accessdate=2020-07-08 |language=zh |archive-url=https://web.archive.org/web/20200707105206/http://news.ifeng.com/c/7xudl8Eo3Ye |archive-date=2020-07-07 |url-status=live }}