西南边境的西盟和沧源，是两个佤族自治县。澜沧江和萨尔温江之间的那一片大山区，中缅国境线向东北方向拐了个深深的弯，缅甸的国土像个半岛斜伸。西盟、沧源两个县城座落在半岛的两旁，离国境线都只有十来公里。从西盟到沧源，穿行缅甸的国土而过最便捷，只有八十多公里... Western Union and Cangyuan on the southwest border are two autonomous counties of Wa nationality. Between the Lancang River and the Salween River, a large mountainous area, the border between China and Myanmar turned a deep bend to the northeast. Burma’s territory resembles a peninsula. Western Union, Cangyuan two county seat is located on both sides of the peninsula, away from the border are only ten kilometers. From Ximeng to Cangyuan, Myanmar’s land through the most convenient, only more than eighty kilometers ...