Gis河流，高程图专用，坡度坡向，全国水文河流地图(gis river,dem and rivers,Chinese rivers ,all of the provinces in china)

shapefile数据，全国范围四级河流数据(river data shapefile)

全国主要一级河流地图，有长江黄河还有主要的湖泊水系，可以做简单的分析使用(Major first-class River maps in China, including the Yangtze River and Yellow River, as well as major lake systems, can be used for simple analysis.)