touge

meaning: pass, crest, crisis

A 'kanji' that does not exist in Chinese. (Thus, no on reading.) Left radical is 'mountain' (山). Right radical is 'up' (上) and 'down' (下). Thus, to go 'up and down a mountain', or over a crest, or through a mountain pass. Henshall suggests as a mnemonic: 'Pass goes up and down mountain.'

Info from Taka Kanji Database
List of compounds including this character from Risu Dictionary