Montenegro in ancient poetry

Many ancient poems describing war talked about "Montenegro", such as "Mulan Ci": "Say goodbye to the Yellow River and go to Heishantou at dusk"; Gao Shi's "Xia Sai Qu": "Qinghai cloud turns, Montenegro soldiers run." There have always been many textual researches on the specific location of Montenegro; The most common statement refers to the killing tiger mountain in Inner Mongolia and southeast of Hohhot.