Yan Mountains
mountain range in China

The Yan Mountains, also known by their Chinese name Yanshan, are a major mountain range to the north of the North China Plain, principally in the province of Hebei.
The range rises between the Chaobai River on the west and the Shanhai Pass on the east. It consists mostly of limestone, granite, and basalt. Its altitude ranges from 400 to 1000 meters. The main peak, Mount Wuling, is 2,116 meters (6,942 ft) above sea level and is located in Xinglong County in Hebei. The range contains many narrow passes, such as the Gubei Pass, the Xifeng Pass, and the Leng Pass. The eastern stretch of the Great Wall of China, including Badaling in northern Beijing, can be found in the Yan Mountains. The mountains are also an important traffic gateway between the north and south.
The public source identifies “Yan Mountains” as mountain range in China. This brief keeps that definition visible, then builds a research path around Mountains, mountain and range.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Yan Mountains”, the useful work is to connect “mountain range in China” to the records capable of establishing context and consequence.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Mar 3, 2025. The linked authority identifier is Q1330555. Authority coordinates are 41.000, 120.000. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1000.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Yan Mountains”, its source revision and the description used here.
- Expand the search: follow Yan Mountains primary sources, Yan Mountains archive and Mountains research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Yan Mountains”?
- What physical evidence or contemporary plan supports the description?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Yan Mountains” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.