Unified Interior Regions


We conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens and landscapes of the Southeastern United States and the Caribbean region.

States L2 Landing Page Tabs

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Date published: January 21, 2009

Digital Hydrogeologic Surface and Thickness of the Mississippi Embayment Regional Aquifer Study (MERAS)

Short Title: MERAS Framework

Project Chief: Rheannon Hart

Cooperator: U.S. Geological Survey Office of Ground-Water Resources Program

Project Time Frame: January 2006 - 2009

A hydrogeologic framework for a ground-water flow model is under development as part...

Contacts: Rheannon M Hart
Date published: January 1, 2009

Lower Mississippi River National Rivers and Streams Assessment

Short Title: Mississippi River NRSA

Project Chief: Billy Justus

Cooperator: U.S. Environmental Protection Agency

Project Time Frame: 2008 - 2009

The USGS Arkansas and Missouri Water Science Centers (WSC) are conducting a study for the U.S. Environmental...

Contacts: Billy G Justus
Date published: January 1, 1999

Mississippi Delta Management Systems Evaluation Areas (MDMSEA)

The Mississippi Delta Management Systems Evaluation Areas (MDMSEA) Project began in 1995 with two purposes: 1) to assess how agricultural activities affect water quality; and 2) to evaluate Best Management Practices (BMPs) that mitigate agricultural nonpoint source pollution. The project is located in the northwestern portion of Mississippi, an area of intense agriculture referred to as the...

Filter Total Items: 79
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November 8, 2012

HATTIESBURG - Miss. – A dynamic new online flood preparedness tool that will help emergency managers improve flood warnings and response has been developed for the Leaf River, site of the historic flood that devastated portions of Hattiesburg in 1974 and led to eight deaths.

September 7, 2012

JACKSON, Miss. – The U.S. Geological Survey mapped the damage caused to Tangipahoa Dam in 3-D earlier this week, using new technology to get a detailed view of the troubled dam. The dam was damaged during heavy rainfall in Hurricane Isaac and caused thousands of people downstream to be evacuated late last week.

August 28, 2012

Sandy beaches and barrier islands along the northern Gulf of Mexico are highly vulnerable to beach and dune erosion as Hurricane Isaac makes landfall this week, according to a new U.S. Geological Survey assessment. The projections also show which coastal areas may see storm-surge topping sand dunes and beaches.  

June 5, 2012

California, Louisiana and Mississippi join the more than 40 states covered by the US Topo

USGS science for a changing world logo
December 1, 2011

More than 280 million acre-feet of groundwater has been withdrawn from the Mississippi embayment aquifer system between 1870-2007, according to a new water modeling tool developed by the U.S. Geological Survey.

USGS science for a changing world logo
August 29, 2011

Glyphosate, also known by its tradename Roundup, is commonly found in rain and rivers in agricultural areas in the Mississippi River watershed, according to two new USGS studies released this month. 

USGS science for a changing world logo
May 16, 2011

U.S. Geological Survey crews are measuring flooding along the Atchafalaya and Mississippi Rivers, including the Morganza and Bonnet Carre Spillways.

Several USGS streamgages located on the Mississippi and Atchafalaya Rivers are expected to reach the highest levels recorded since 1927.

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May 11, 2011

The USGS Mississippi Water Science Center is working to provide emergency information on the flow and water level of the Mississippi River and its tributaries at critical locations throughout the State of Mississippi.

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May 6, 2011

USGS scientists are measuring the amount of water spilling into the New Madrid floodway as a result of the recent intentional breaching of the Birds Point Levee in Missouri. The measurements are critical for estimating how much water downstream levees will need to hold back and for predicting flood crest heights, as the remaining flood waters pass through the Mississippi River. 

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April 26, 2011

The National Earthquake Prediction Evaluation Council has issued a new report in which independent experts conclude that current USGS estimates for significant earthquake hazards in the New Madrid Seismic Zone—affecting eight central and eastern U.S states—are based on sound science.

November 30, 2010

Growing corn for biofuels production is having unintended effects on water quality and quantity in northwestern Mississippi.