Yun-ling

Etymology
From the Wade-Giles romanization of 雲嶺 (Yúnlǐng) Wade-Giles romanization: Yün²-ling³.

Usage notes
The hyphenated form "Yun-ling" employs the Chinese name as a unit and may be used along with the English "mountain" or "Mountains". The form "Yun Ling", however, treats the lǐng as a foreign geographical term (similar to the rio in Rio Grande) and should not be used with identical English terms.

Both uses are dated and Yunling is more common in modern English.