gorge, ravine
峡 centers on a narrow passage between steep sides: a gorge or ravine, where land is pinched between mountains.
峡 combines 山 (mountain) with 夹, which likely contributes the sound and the idea of being pressed between two sides, giving a mountain gorge.
The left side 山 is a mountain, and the right side 夹 looks like something squeezed between two sides. Picture a narrow gorge pinched between steep mountain walls.
For キョウ, imagine a narrow gorge echoing with a loud 'kyo!' sound as your voice bounces between the cliffs: kyo -> キョウ.
channel (e.g. between two land masses); strait
gorge; ravine; canyon; glen
gorge; ravine
Kanmon Straits (between Honshu and Kyushu)
English Channel
Strait of Hormuz
sore throat; acute tonsillitis; angina
Straits of Taiwan
international strait
isthmus
gorge; ravine; gap
fjord
ravine wind; canyon wind; gorge wind
isthmus
between the mountains
Honshi Kaikyō Bus Company
English Channel
Channel Tunnel; Chunnel