Mississippi Alluvial Plain Extent, November 2017

The Mississippi Alluvial Plain (MAP) has become one of the most important agricultural regions in the US, and it relies heavily on a groundwater system that is poorly understood and shows signs of substantial change. The heavy use of the available groundwater resources has resulted in significant groundwater-level declines and reductions in base flow in streams within the MAP. These impacts are limiting well production and threatening future water-availability for the region.
This product will help not only scientists in our center, but also at a national level. This product will also be part of a larger study encompassing the Mississippi Alluvial Plain region.
The Mississippi Alluvial Plain extent was delineated using GIS tools to represent the geographic extent of the Mississippi Alluvial Aquifer through incorporation of elevation information, geomorphology knowledge, ecological region extent, and previously published extents for part of the MAP region.
The current MAP extent represents version 1.0. Future changes to the MAP extent will be tracked through increasing version numbers.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:5a8c97c1e4b069906054df6e
metadata_type geospatial
modified 20200827
old-spatial -92.793072574, 28.902550399, -88.254164089, 37.412257973
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 2a83159b025ec02509cf997fff91ee6e8ed9c168
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-92.793072574, 28.902550399], [-92.793072574, 37.412257973], [ -88.254164089, 37.412257973], [ -88.254164089, 28.902550399], [-92.793072574, 28.902550399]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • aquifer-system
  • arkansas
  • arkansas-river
  • ckan
  • geo
  • geoss
  • groundwater-availability-project
  • groundwater-modeling
  • hydrogeology
  • illinois
  • kentucky
  • lmg
  • louisiana
  • lower-mississippi-gulf-water-science
  • map
  • mississippi
  • mississippi-alluvial-plain
  • mississippi-river
  • mississippi-river-delta
  • mississippi-valley
  • missouri
  • national
  • north-america
  • tennessee
  • u-s-geological-survey
  • united-states
  • usgs
  • usgs-5a8c97c1e4b069906054df6e
  • water-availability-and-use-science-program
  • water-availability-project
isopen False
license_id notspecified
license_title License not specified
maintainer Jaime A Painter
maintainer_email jpainter@usgs.gov
metadata_created 2025-11-20T13:39:14.578205
metadata_modified 2025-11-20T13:39:14.578209
notes The Mississippi Alluvial Plain (MAP) has become one of the most important agricultural regions in the US, and it relies heavily on a groundwater system that is poorly understood and shows signs of substantial change. The heavy use of the available groundwater resources has resulted in significant groundwater-level declines and reductions in base flow in streams within the MAP. These impacts are limiting well production and threatening future water-availability for the region. This product will help not only scientists in our center, but also at a national level. This product will also be part of a larger study encompassing the Mississippi Alluvial Plain region. The Mississippi Alluvial Plain extent was delineated using GIS tools to represent the geographic extent of the Mississippi Alluvial Aquifer through incorporation of elevation information, geomorphology knowledge, ecological region extent, and previously published extents for part of the MAP region. The current MAP extent represents version 1.0. Future changes to the MAP extent will be tracked through increasing version numbers.
num_resources 2
num_tags 32
title Mississippi Alluvial Plain Extent, November 2017