The Mt ...yama and ...kawa River variations are common even on official signage in Japan. The problem is that English speakers might not understand that “Tatey

The Mt ...yama and ...kawa River variations are common even on official signage in Japan. The problem is that English speakers might not understand that “Tateyama” means “Mt Tate” and Japanese speakers might not understand that “Mt Tate” means “Tateyama”, so Mt Tateyama is a compromise.