洋桥是凉水河上的一座桥的名字。1898年由英国人设计建造的一座水泥桥，所以被成为“洋桥”。
修建这座桥，是为了方便人们到桥南的马家堡火车站乘车。马家堡火车站是19世纪北京最大的火车站，1902年废弃。
原来的洋桥和马家堡火车站都已经消失了，凉水河上如今架设了多座桥梁便于通行。
这个宝是10毫升小瓶，有磁性。在洋桥以南，马草河汇入凉水河的地方。
Yangqiao is the name of a bridge on the Liangshui River. A cement bridge designed and built by the British in 1898, the bridge's name transplates to English is "foreign bridge". The bridge was built to make it easier for people to travel to the Majiapu Railway Station south of the bridge. Majiapu Railway Station was the largest railway station in Beijing in the 19th century and was abandoned in 1902. The original Yangqiao and Majiapu Railway Station have disappeared, and several bridges have been erected on the Liangshui River to facilitate passage. This cache is a 10ml tube, which is magnetic. Located at south of Yangqiao, where Ma Cao River merges into Liangshui River.