Groundwater-altitude data, from monitoring-networks wells, considered for the potentiometric-surface map, Mississippi River Valley alluvial aquifer, spring 2018

This dataset contains groundwater (GW)-altitude (ALT) data from wells that was used or considered to create a potentiometric-surface map for the Mississippi River...本数据集收录了取自各类井孔的地下水（Groundwater，简称GW）-高程（Altitude，简称ALT）数据，此类数据曾被用于或拟用于编制密西西比河流域的测压水面图（potentiometric-surface map）……