Mississippi Embayment aquifer system

Science Center Objects

The Mississippi Embayment aquifer system is more than 5,000 feet thick in a wide area of south-central Louisana and southwestern Mississippi.

WAUSP Mississippi Embayment Regional Aquifer Sudy photo 16

Hydrogeologic units of the Mississippi embayment aquifer system include the Mississippi River Valley alluvial aquifer, Vicksburg-Jackson confining unit, the upper Claiborne aquifer, the middle Claiborne confining unit, the middle Claiborne aquifer, the lower Claiborne confining unit, the lower Claiborne aquifer, the middle Wilcox aquifer, the lower Wilcox aquifer, and the Midway confining unit.

The data files listed below are supplemental to Digital surfaces and thicknesses of selected hydrogeologic units within the Mississippi Embayment Regional Aquifer Study (MERAS) (USGS Scientific Investigations Report 2008-5089). The report includes a description of methods used to derive the data.


Click on the links below to download files for this aquifer. For information about the available file types, see Aquifer data: Explanation of spatial data formats.

Hydrogeologic Unit Extents:

Hydrologic Unit Surfaces: