石关峡,位于今酒泉城西北35公里处。《肃州志》称为“石关”,关在南北两山间。这是数十万年前大地震断裂地带。两山壁立,断层俨然,形势险要,当地人因称此峡为石关峡。又因晴日遥望山色紫黑,又有“黑山峡”之称。峡南为嘉峪山余脉之岗峦丘陵,因产玉,本名“碧玉山”或“玉石山”。《肃州志》引《穆天子传》:“天子循黑水,至于碧玉之山”,即此。玉山有石门,故称“玉门”。峡之北为黑山,古代称“洞庭山”,又称“鸿庐山”。《新唐书》云:“酒泉西有洞庭山,在州西七十里……山里出金,又名金 Strait Gap, is located 35 kilometers northwest of this wine Springs Department. “Soochow” is called “stone customs”, closed in the north and south mountain. This is hundreds of thousands of years ago a major earthquake rupture zone. Two walls, the fault is as if the situation is dangerous, because the local people called the Gap for the Strait Gorge. Because of sunny day looking purple mountain, there are “Black Mountain Gorge,” said. Gap south Jiayushan hills of the hills range, due to production jade, whose real name is “Jasper Mountain” or “Jade Mountain.” “Suzhou” cited “Biography of Emperor Mu”: “Emperor followed Blackwater, as Jasper Mountain”, that is. Yushan Shimen, so called “Yumen.” North of Gap is Montenegro, ancient called “Dongting Mountain”, also known as “Honglu Mountain.” “New Book of Tang” cloud: "Jiuquan Dongting Mountain west, west of the state seventy miles ... ... the mountains of gold, also known as gold