Lóng mén shān / wèi yú / Sì chuān pén dì / xī běi / biān yuán / shì / yī tiáo / zhòng yào / de / dì zhì / fēn jiè xiàn

龙门山位于四川盆地西北边缘，是一条重要的地质分界线。

Longmen Mountain is located at the northwestern edge of the Sichuan Basin and is an important geological boundary.