Shanhai Pass is the eastern start of the Great Wall.
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Not a standard Chinese character — it is the Japanese shinjitai form of 關, whose mainland simplified form is 关. You meet it only in Japanese text or Japanese proper names; in Chinese always write 关.
register
Foreign-variant glyph; appears in cross-language and etymology notes, never in written Chinese.
The simplified bolt-shape inside the gate stands for the locking element. In this Japanese variant it replaces the dense traditional interior of 關 while keeping the guān reading and the 'shut / barrier' sense.
No stroke data for 関; the glyph shown is your device font, so component strokes can't be highlighted.
