The final gateway where Yuan troops breaks before they can intrude the capital of Song Dynasty

This is the gateway, which is the last defender barrier of Song (South) Dynasty, called "Du Song Guan" (The single pine tree gateway). Broke by troops from Yuan, then they directly fight towards the capital of Song - LinAn (now called Hang Zhou city), and finally built the Yuan Dynasty.

独松关，块石垒成，长近百米，跨独松溪，衔接两山，高5.8米。瓮城式关门构筑，仅容单骑。独松关是南宋都城临安（今杭州）西北的重要关卡，元兵功宋时在此激战。终因独松关失守，元兵直指都城，南宋王朝覆灭。