Bedrock Potentiometric Surface Elevations

LINE: This file is a digital geospatial polyline feature class of the bedrock 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 bedrock deposits so no potentiometric surface elevations were mapped for these areas in Indiana.LINE：本文件为按县（郡）为印第安纳州（Indiana）绘制的基岩测压水位面高程数字地理空间折线要素类（digital geospatial polyline feature class）。 POLYGON：本文件为数字地理空间多边形要素类（digital geospatial polygon feature class），涵盖印第安纳州内无数据或数据不足，抑或基岩沉积有限、不存在，因此未在上述区域绘制测压水位面高程的区域。