巴山
Mt Ba in eastern Sichuan
巴山夜雨
rain on Mt Ba (idiom); lonely in a strange land; Evening Rain, 1980 movie about the Cultural revolution
巴山蜀水
mountains and rivers of Sichuan (idiom)
巴山越岭
to climb hills and pass over mountains (idiom); to cross mountain after mountain; good at climbing mountains
跋山涉水
to travel over land and water (idiom)