Depth to top of the Minnekahta Limestone

This data set is a polygon coverage created in ARC/INFO that represents the depth to the top of the Minnekahta Limestone below the land surface, Black Hills, South...本数据集为在ARC/INFO中创建的多边形覆盖数据，用于表征美国南达科他州黑山（Black Hills）区域内地表以下明尼卡塔石灰岩（Minnekahta Limestone）顶面的埋深……