Unconsolidated Potentiometric Surface Elevations

LINE: This file is a digital geospatial polyline feature class of the unconsolidated potentiometric surface elevations mapped for Indiana by County POLYGON: This file is a digital geospatial polygon feature class of the areas where the there was no/insufficient data; or limited or no unconsolidated deposits so no potentiometric surface elevations were mapped for these areas in Indiana.折线要素类（LINE）：本文件为按县域为印第安纳州编制的未固结沉积物测压水面高程数字地理空间折线要素类（digital geospatial polyline feature class）。 多边形要素类（POLYGON）：本文件为数字地理空间多边形要素类（geospatial polygon feature class），涵盖印第安纳州内存在以下情况的区域：无可用数据或数据不足，或是仅存在有限甚至完全缺失未固结沉积物（unconsolidated deposits），因此未对上述区域开展测压水面高程（potentiometric surface elevations）制图工作。