Great musan also known as fairy mountains, ancient as Beiyue Hengshan Mountain, elevation 1898 meters, ranks at the Baoding Fuping, Tangxian County, Laiyuan at the junction of three counties.

• 大茂山又名神仙山，古为北岳恒山，海拔1898米，雄居于保定阜平、唐县、涞源三县交界处。