Karst Cave Density

KARST_CAVE_DENSITY_IN is a polygon shapefile that shows the density (i.e., number per square kilometer) of mapped cave entrances in Silurian, Devonian, and Mississippian rocks in southern Indiana. Locations of individual cave entrances are not shown.KARST_CAVE_DENSITY_IN 是一款多边形形状文件（polygon shapefile），用于展示印第安纳州南部志留系、泥盆系及密西西比系岩层中已测绘洞穴入口的密度（即每平方千米的洞穴入口数量），该数据集未呈现单个洞穴入口的具体位置。