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衡南县有紫色砂页岩山地598747亩(不包括紫色砂岩),占全县山地总面积30.76%,分布金县47个公社534个大队,是全县分布最广,面积最大的一种山地土
There are 598747 mu of purple sandstone shale (excluding purple sandstone) in Hengnan County, accounting for 30.76% of the total mountain area of the county and 534 brigades of 47 communes in Jinxian County. It is the most widely distributed mountainous area with the largest area in the county earth