Of an angle of over 70 degrees are ever - present while the south - west side is blanket - ed in snow all the year round . halfway up the mountain , ravines abound and gulles crisscross . " rolling stone " and " wolf s fang " areas scattered with huge rocks from t 雪宝顶东北坡为70度以上的悬崖绝壁，西南坡终年积雪，山腰沟壑纵横，通向顶峰之路又必经怪石峥嵘，险景丛生的滚石区和“狼牙区” ，有较大的攀登难度，对登山探险者很有吸引力。
The jiayuguan pass tower , strategically located between the qilian mountain and mazong mountain , guards the east - west passageway at the western end of the great wall and is the best preserved pass . surrounded by three inner and outer walls and several lines of defense , jiayuguan was a vital military stronghold of defense 嘉峪关城楼，向南至终年积雪的祁连山下讨赖河畔，明长城依山势起伏隐现，向北到黑山悬崖，长城蜿蜒绵亘，嘉峪关城楼位于祁连山与马鬃山这间狭长咽喉地带的最窄处，镇守东西通道，是万里长城西端险要关隘，也是长城沿线保存得最完整的一座雄关，嘉峪关城由三重城郭多道防线，形成重城并守之势，构成一个壁垒森严的军事防御工程。
