The Chinese word for valley is
山谷

shān gǔ

Chinese Definition

valley
1. 名词. 谷
2. 名词. 山谷
Components
山
1. mountain; hill
登山 - to climb a mountain
2. hill-shaped object
冰山 - iceberg
3. bundled straw in which silkworms spin cocoons
4. gable
5. (Cantonese, Liuzhou Mandarin, Pinghua) tomb; grave
6. . Shan
谷
1. valley; gorge; ravine
2. river or stream between two mountains; (in general) stream or river
3. (figurative) difficult position; predicament
進退維谷 - to be caught between a rock and a hard place
谷愛-凌 - Eileen Gu
4. to pressure
5. to hasten; to boost
6. to cause to swell by pressuring
7. to hold back or conceal negative emotions or feelings
8. (Hong Kong Cantonese, social media, Internet slang) group
9. Only used in 吐谷渾 (Tuyuhun: name of an ancient nomadic people in northwestern China, 谷渾, surname)
10. Only used in 谷蠡王 (, 谷蠡, title for Xiongnu officials)
11. Simplified form of 穀