Yanqing, Beijing (English Wikipedia)

"1000 Years Old Houses Carved out of Rock: Guyaju Ruins". China Underground. April 10, 2016. Archived from the original on February 7, 2018. Retrieved February 6, 2018.

china.com

3g.china.com

北京迎30年来最冷一天：延庆最低气温逼近-30度 Archived 2016-01-30 at the Wayback Machine

chinadaily.com.cn

"Beijing rebuilds its ancient town". China Daily. July 21, 2003. Archived from the original on October 3, 2018. Retrieved February 6, 2018.

chinanews.com

"京张高铁延庆支线今晨通车清河到延庆只用26分钟". 2020-12-01. Archived from the original on 2021-01-02. Retrieved 2021-07-23.

cma.cn

data.cma.cn

中国气象数据网 – WeatherBk Data (in Simplified Chinese). China Meteorological Administration. Retrieved 26 August 2023.
中国气象数据网 – WeatherBk Data (in Simplified Chinese). China Meteorological Administration. Retrieved 10 October 2023.

cncn.com

beijing.cncn.com

"The introduction of Beijing Badaling Great Wall". Archived from the original on 2021-06-29. Retrieved 2021-06-29.

ifeng.com

news.ifeng.com

"北京密云延庆两县将撤县设区。". News.ifeng.com. Retrieved 2018-05-28.

longqingxia.cn

"The Longqing Gorge". Archived from the original on 2019-08-04. Retrieved 2021-06-29.

people.com.cn

politics.people.com.cn

"北京撤销密云县、延庆县设立密云区、延庆区". 2015-11-17. Archived from the original on 2021-07-24. Retrieved 2021-07-24. 延庆区人民政府驻儒林街道湖北西路1号

bj.people.com.cn

L_104104 (2014-06-12). "北京将举办2019年世界园艺博览会。". Bj.people.com.cn. Archived from the original on March 26, 2020. Retrieved 2018-05-28.{{cite web}}: CS1 maint: numeric names: authors list (link)

qianlong.com

beijing.qianlong.com

"2015年前10月延庆空气质量全市最好。". Beijing.qianlong.com. 2015-11-10. Retrieved 2018-05-28.

sina.com.cn

sports.sina.com.cn

"Vanke Shijinglong Ski Resort opened: to create the first Internet + Ski Resort". Archived from the original on 2021-06-29. Retrieved 2021-06-29.

baby.sina.com.cn

北京新春博物馆活动精彩大盘点 Archived 2019-06-27 at the Wayback Machine.新浪

sohochina.com

"Commune by the Great Wall". SOHO China. Archived from the original on 2020-07-08. Retrieved 2020-09-04. Shuiguan Great Wall Exit, No. 53, G6 JingzangHighway, Beijing - The page is also available in Mandarin Chinese. Chinese address: "北京G6京藏高速公路53号水关长城出口"

sohu.com

m.sohu.com

http://m.sohu.com/n/416820997/?_trans_=000115_3w 延庆简介：常住人口31.7万首都生态涵养发展区。

stats.gov.cn

2020年统计用区划代码和城乡划分代码：延庆区 (in Chinese). National Bureau of Statistics of the People's Republic of China. Archived from the original on 2021-07-23. Retrieved 2021-07-24.

swcc.org.cn

"General situation of Yanqing". Archived from the original on 2021-06-29. Retrieved 2021-06-29.

thebeijinger.com

"Longqing Gorge 龙庆峡". The Beijinger. Archived from the original on 2018-05-07. Retrieved 2018-05-06.

timeoutbeijing.com

"Beijing's best day trips: lakes and rivers". Time Out Beijing. May 2, 2017. Archived from the original on May 7, 2018. Retrieved May 6, 2018.

web.archive.org

2020年统计用区划代码和城乡划分代码：延庆区 (in Chinese). National Bureau of Statistics of the People's Republic of China. Archived from the original on 2021-07-23. Retrieved 2021-07-24.
"北京撤销密云县、延庆县设立密云区、延庆区". 2015-11-17. Archived from the original on 2021-07-24. Retrieved 2021-07-24. 延庆区人民政府驻儒林街道湖北西路1号
L_104104 (2014-06-12). "北京将举办2019年世界园艺博览会。". Bj.people.com.cn. Archived from the original on March 26, 2020. Retrieved 2018-05-28.{{cite web}}: CS1 maint: numeric names: authors list (link)
"历史沿革 - 北京延庆". bjyq.gov.cn. 2016-07-01. Archived from the original on July 1, 2016. Retrieved 2022-02-05.
"Overview of Yanqing, Beijing". Archived from the original on 2021-06-29. Retrieved 2021-06-29.
"General situation of Yanqing". Archived from the original on 2021-06-29. Retrieved 2021-06-29.
北京迎30年来最冷一天：延庆最低气温逼近-30度 Archived 2016-01-30 at the Wayback Machine
"Overview of the population". Archived from the original on 2021-06-29. Retrieved 2021-06-29.
"Beijing's best day trips: lakes and rivers". Time Out Beijing. May 2, 2017. Archived from the original on May 7, 2018. Retrieved May 6, 2018.
"Longqing Gorge 龙庆峡". The Beijinger. Archived from the original on 2018-05-07. Retrieved 2018-05-06.
"1000 Years Old Houses Carved out of Rock: Guyaju Ruins". China Underground. April 10, 2016. Archived from the original on February 7, 2018. Retrieved February 6, 2018.
Kirch, John (June 13, 2018). "One hour out: Beijing Beyond the Great Wall to the Guyaju Caves". Wall Street Journal. Archived from the original on July 25, 2019. Retrieved September 3, 2019.
"Beijing rebuilds its ancient town". China Daily. July 21, 2003. Archived from the original on October 3, 2018. Retrieved February 6, 2018.
"Commune by the Great Wall". SOHO China. Archived from the original on 2020-07-08. Retrieved 2020-09-04. Shuiguan Great Wall Exit, No. 53, G6 JingzangHighway, Beijing - The page is also available in Mandarin Chinese. Chinese address: "北京G6京藏高速公路53号水关长城出口"
"The history of The Beijing Wild Duck Lake Wetland". Archived from the original on 2021-06-29. Retrieved 2021-06-29.
"The introduction of Beijing Badaling Great Wall". Archived from the original on 2021-06-29. Retrieved 2021-06-29.
"The Longqing Gorge". Archived from the original on 2019-08-04. Retrieved 2021-06-29.
"Vanke Shijinglong Ski Resort opened: to create the first Internet + Ski Resort". Archived from the original on 2021-06-29. Retrieved 2021-06-29.
北京新春博物馆活动精彩大盘点 Archived 2019-06-27 at the Wayback Machine.新浪
"展馆介绍，詹天佑纪念馆，于2013-03-16查阅". Archived from the original on 2014-12-22. Retrieved 2013-03-17.
"关于我们，北京八达岭野生动物世界官方网站，于2013-12-31查阅". Archived from the original on 2014-01-01. Retrieved 2013-12-31.
"Yanqing District's 2019 National Economic and Social Development Statistical Bulletin". Archived from the original on 2022-01-13. Retrieved 2021-06-29.
"京张高铁延庆支线今晨通车清河到延庆只用26分钟". 2020-12-01. Archived from the original on 2021-01-02. Retrieved 2021-07-23.

wikipedia.org

zh.wikipedia.org

《延庆县志》 [Yanqing County Magazine] (in Simplified Chinese). Beijing Publishing House [zh]. 2006. ISBN 9787200063721.

wsj.com

Kirch, John (June 13, 2018). "One hour out: Beijing Beyond the Great Wall to the Guyaju Caves". Wall Street Journal. Archived from the original on July 25, 2019. Retrieved September 3, 2019.

yeyahu.com

"The history of The Beijing Wild Duck Lake Wetland". Archived from the original on 2021-06-29. Retrieved 2021-06-29.

zaobao.com

北京延庆晋级为世界地质公园。^{[permanent dead link]}

zhantianyou.org

"展馆介绍，詹天佑纪念馆，于2013-03-16查阅". Archived from the original on 2014-12-22. Retrieved 2013-03-17.