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MA CHANG, Yanqing County, Beijing. Overview. On the border between Beijing Municipality and the surrounding Hebei Province, Ma. Chang is a large area of grassland, criss-crossed with tracks, on the edge of the Guanting. Reservoir in Yanqing County. It is particularly productive for birds during spring and. autumn migration, during which time a daily tally of 70+ species is usual.
The terrain of the Beijing area slopes from the northwest to the southeast. Mountains snake round the city's north, west and northeast, while the southeast part of the city is a plain that slopes gently toward the coast of the Bohai Sea. The Yongding, Chaobai and Juma rivers and the north section of the Grand Cannel crisscross the area under Beijing's jurisdiction. Most of the rivers originate from mountainous areas in the northwest, cut through mountains and zigzag through the plain in the southeast before emptying into Bohai Sea.