Datasets Activity Stream About Order by Relevance Name Ascending Name Descending Last Modified Popular Go 1 dataset found Formats: CSV KML ZIP Tags: ESF11 HIFLD Filter Results Aquifers This map layer contains the shallowest principal aquifers of the conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands, portrayed as polygons. The map... HTML Esri REST GeoJSON CSV KML ZIP