Unified Interior Regions

Region 4: Mississippi Basin

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Welcome to the Mississippi Basin Region! Our streamgage network is used to monitor and assess water resources across the region. Other research focuses on fisheries and aquatic ecosystems, midcontinental plant/animal species, invasive species, wildlife disease, and energy and mining.

News

Date published: May 26, 2021

USGS Releases Nationwide Marsh Vulnerability Maps

Scientists developed high-resolution imagery of coastal wetlands to identify the most vulnerable marshes across the US  

Date published: May 24, 2021

Wetland Word: Blue Carbon

Coastal ecosystems, like wetlands, may be smaller in size when compared to say, a forest, but they have the ability to sequester more carbon per unit area, making them an incredible climate change mitigation tool

Date published: May 20, 2021

Media Alert: Flights Above the Mississippi Alluvial Plain to Continue Aquifer Mapping

Editor:  In the public interest and in accordance with Federal Aviation Administration regulations, the USGS is announcing this low-level airborne project.  Your assistance informing the local communities is appreciated.  

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Date published: July 8, 2021
Status: Active

Improving Survival of Juvenile Winged Mapleleaf Mussels (Quadrula fragosa) Through Identification of Host Fish Overwintering Areas

The St. Croix National Scenic Riverway (SACN) is one of the last refuges for rapidly declining populations of native unionid mussels in the United States and supports the only known self-sustaining population of the federally endangered Winged Mapleleaf mussel (Quadrula fragosa) in the upper Mississippi River basin. The Channel Catfish (Ictalurus punctatus) is the only known...

Date published: April 30, 2020
Status: Active

Forest Structure Resulting from ‘Wildlife Forestry Silviculture’

Wildlife forestry is management of forest resources, within sites and across landscapes, to provide sustainable, desirable habitat conditions for all forest-dependent (silvicolous) fauna while concurrently yielding economically viable, quality timber products. In practice, however, management decisions associated with wildlife forestry often reflect a desire to provide suitable habitat for...

Date published: January 22, 2020
Status: Active

Mapping High Marsh along the Northern Gulf of Mexico Coast

USGS is collaborating with Mississippi State University to investigate the effects of fire on Gulf of Mexico marshes. The project will include mapping high marsh and monitoring black rail, yellow rail, and mottled duck responses to prescribed fire application.

Date published: November 5, 2019
Status: Active

Creating a System-Wide Assessment and Monitoring Program (SWAMP) for Coastal Louisiana

USGS researchers will provide technical guidance to inform the development of monitoring plans for the western coast of Louisiana.

Date published: October 21, 2019
Status: Active

Ozark Dome-Arkoma Basin-Ouachita Transect

The Ozark Dome-Arkoma Basin-Ouachita Transect (ODABOuT) project examines the three-dimensional geology of a transect of the southern orogenic margin of North America in its best surface exposure in western Arkansas. The Ozark Dome and Arkoma Basin represent a foreland uplift and foreland basin that formed as a result of the impinging Ouachita orogenic belt. Understanding the geometry and...

Date published: September 4, 2019
Status: Active

Real-Time Storm Response

Coastal change forecasts and pre- and post-storm photos documenting coastal change for landfalling storms. Currently responding to Hurricane Dorian.

Contacts: Kara Doran
Date published: July 25, 2019
Status: Active

Geospatially Enabled, Web-based Habitat Reporting Tool to Support Monitoring and Assessment along the Louisiana Shore

The State of Louisiana's Barrier Island Comprehensive Monitoring (BICM) program has partnered with USGS to developed two habitat classifications schemes for monitoring barrier island habitats and habitats in beach-dune systems along the mainland. These schemes builds upon previous BICM habitat mapping efforts.

Date published: June 27, 2019
Status: Active

Model Improvements for Louisiana’s 2023 Coastal Master Plan

The Louisiana Coastal Protection and Restoration Authority’s Coastal Master Plan is a blueprint for responding to environmental changes. As part of the agency’s continued engagement, USGS supports model developments and improvements for the 2023 Coastal Master Plan.

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Date published: December 26, 2019

Geochemical analyses of bauxite and associated rocks from the Arkansas bauxite region, central Arkansas

This data release compiles major and trace element analytical results of samples of bauxite (aluminum ore) and associated rocks collected from the Arkansas bauxite region, located near the center of Arkansas in Pulaski and Saline Counties. Samples were collected by the U.S. Geological Survey (USGS) in April 2018 as part of the USGS' focus on increased understanding of the United State

Date published: December 20, 2019

Suspended-sediment concentration data from water samples collected in 2016-17 in Grand Bay, Alabama and Mississippi

In wetlands within and near Grand Bay National Estuarine Research Reserve, parts of the salt marsh are eroding relatively rapidly. To understand the connection between sediment fluxes and these processes, the U.S. Geological Survey made oceanographic and water-quality measurements from August 2, 2016, to January 28, 2017

Date published: November 18, 2019

Airborne magnetic and radiometric survey, southeast Missouri and western Illinois, 2018-2019

This publication provides digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over an area of southeast Missouri and western Illinois. The survey represents the first airborne geophysical survey conducted as part of the U.S. Geological Survey (USGS) Earth Mapping Resource Initiative (Earth MRI) effort (Day, 2019). Earth MRI is a coopera

Date published: November 5, 2019

Geochemical data supporting a comparison of apatite between regional magmatism and the Pea Ridge Iron Oxide-Apatite-Rare Earth Element (IOA-REE) and Boss Iron Oxide-Copper-Cobalt-Gold-REE Deposits (IOCG) deposits, southeastern Missouri, USA

This data release presents high-spatial resolution geochemical analyses collected from Mesoproterozoic apatite crystals in igneous rocks from the St. Francois Mountains terrane and coeval ore rocks from the Pea Ridge iron oxide-apatite-rare earth element (IOA-REE) and Boss iron oxide-copper-gold (IOCG) deposits. These deposits are located in the southeast Missouri iron metallogenic provin

Date published: October 16, 2019

Archive of Chirp Subbottom Profile Data Collected in 2018 from the Northern Chandeleur Islands, Louisiana

From August 16 to 21, 2018, the U.S. Geological Survey (USGS) conducted a geophysical survey to investigate the geologic controls on barrier island evolution and medium-term and interannual sediment transport along the sand berm constructed in 2011 (offshore, at the northern end of the Chandeleur Islands, Louisiana) as mitigation of the Deepwater Horizon oil spill. This investigat

Date published: September 26, 2019

Channel bed elevations for a 5-mile reach on the Maumelle River upstream of Lake Maumelle near Little Rock, Arkansas, 2019

The U.S. Geological Survey (USGS) in cooperation with the U.S. Army Corps of Engineers (USACE) did a bathymetric survey of the lower reach of the Maumelle River upstream of Lake Maumelle, near Little Rock, Arkansas, from July 9—11, 2019. Channel bed elevations (thalweg) were collected to support a USACE modeling effort on a 5-mile reach of the Maumelle River. In parts

Date published: September 6, 2019

USGS Gulf Coast Petroleum Systems and National and Global Oil and Gas Assessment Projects-Louisiana-Mississippi Salt Basins and Western Gulf Provinces, Upper Cretaceous Tuscaloosa Marine Shale Assessment Unit Boundaries and Assessment Input Data Forms

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered gas hydrate resources on the north slope of Alaska. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum...

Date published: August 27, 2019

Airborne electromagnetic, magnetic, and radiometric survey, Shellmound, Mississippi, March 2018

Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired in late February to early March 2018 along 2,364 line-kilometers in the Shellmound, Mississippi study area. Data were acquired by CGG Canada Services, Ltd. with three different helicopter-borne sensors: the CGG Canada Services, Ltd. RESOLVE frequency-domain AEM instrument that is used to map subsurface

Date published: July 12, 2019

Crustal Architecture Beneath the Southern Midcontinent (USA) -- Data Grids and 3D Geophysical Models

Regional grid files and 3D voxel models were used to study crustal architecture beneath the Southern Midcontinent (USA) by McCafferty and others (2019). The study covered a rectangular, multi-state area of 924 by 924 kilometers centered on Missouri, and a corresponding volume extending from the topographic surface to a depth of 50 kilometers below sea level. The grid files consist of

Date published: July 1, 2019

Ground-based time-domain electromagnetic data and resistivity models for the Mississippi Alluvial Plain Project

The Mississippi Alluvial Plain (MAP) Project contains several geologic units which act as important aquifers. We collected several sets of time-domain electromagnetic (TEM) data consisting of two higher-density surveys and six regional-scale transects. The higher density surveys were collected to compare and contrast to other geophysical data not included in this data release, such as a

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Louisiana
September 30, 2016

River and Coastal Forecast Information

Lower Mississippi River Forecast Center, Slidell, Louisiana—(NWS)

 

North Platte, Nebraska US Topo quadrangle: 2014
September 26, 2016

Network wells depicted on the Climate Response Network location map
Note: Color shading in the table below indicates multiple wells that plot as a single point on the state location map above.
Note: BLS = Water Level in Feet Below Land Surface, RVD = Water Level referenced to a vertical datum

Hurricane Louisiana Coast
September 14, 2016

June 1 marks the beginning of hurricane season. Should storms arrive on the Louisiana coast, the people in coastal communities across the State, along with many Federal, State, and local agencies will need to know how the storms are affecting the coastal and low-lying areas.The USGS maintains an extensive network of coastal gages that provides critical time-sensitive water level.

Buffalo River Map Screen Capture
September 14, 2016

Real-time displays of current floating conditions at various sites along the Arkansas Buffalo River. 

Digital Elevation Model in the Atchafalaya Basin, LA
April 19, 2016

The 3DEP products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

Arkansas Map Thumbnail
January 1, 2014

The Arkansas Groundwater - Quality Network is a web map interface that provides rapid access to the U.S. Geological Survey's (USGS) NWIS and the U.S. Environmental Protection Agency's (EPA) STORET databases of ambient groundwater information. The interface enables users to perform simple graphical analysis and download selected water-quality data. 

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Year Published: 2021

The Everglades vulnerability analysis—Integrating ecological models and addressing uncertainty

The Everglades vulnerability analysis (EVA) is a project led by the U.S. Geological Survey in cooperation with the National Park Service and U.S. Army Corps of Engineers to accomplish one of the science goals of Restoration Coordination & Verification (RECOVER), a multiagency group responsible for providing scientific and technical evaluations...

D’Acunto, Laura E.; Romañach, Stephanie S.; Haider, Saira M.; Hackett, Caitlin E.; Nestler, Jennifer H.; Shinde, Dilip; Pearlstine, Leonard G.
D’Acunto, L.E., Romañach, S.S., Haider, S.M., Hackett, C.E., Nestler, J.H., Shinde, D., and Pearlstine, L.G., 2021, The Everglades vulnerability analysis—Integrating ecological models and addressing uncertainty: U.S. Geological Survey Fact Sheet 2021–3033, 4 p., https://doi.org/10.3133/fs20213033.

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Year Published: 2021

Precipitation-driven flood-inundation mapping of the Little Blue River at Grandview, Missouri

The U.S. Geological Survey (USGS), in cooperation with the City of Grandview, Missouri, assessed flooding of the Little Blue River at Grandview resulting from varying precipitation magnitudes and durations and expected land-cover changes. The precipitation scenarios were used to develop a library of flood-inundation maps that included a 3.5-mile...

Heimann, David C.; Voss, Jonathon D.; Rydlund, Jr., Paul H.
Heimann, D.C., Voss, J.D., and Rydlund, P.H., Jr., 2021, Precipitation-driven flood-inundation mapping of the Little Blue River at Grandview, Missouri: U.S. Geological Survey Scientific Investigations Report 2021–5068, 19 p., https://doi.org/10.3133/sir20215068.

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Year Published: 2021

Response to Gard et al.'s (2021) Comments on the Critical Review “Polychlorinated Biphenyl Tissue-Concentration Thresholds for Survival, Growth, and Reproduction in Fish”

This response is offered to the critique by Gard et al. (2021) of our meta-analysis of polychlorinated biphenyl (PCB)-induced toxicity data in fish (Berninger and Tillitt 2019). Gard et al. (2021) offered numerous comments, the most substantive suggesting that 1) we should have added no-observable–adverse effect residue (NOAER) data from...

Berninger, Jason P.; Tillitt, Donald E.

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Year Published: 2021

Water resources of Grant Parish, Louisiana

Information concerning the availability, use, and quality of water in Grant Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 5.43 million gallons per...

Murphy, Chid J.; White, Vincent E.
Murphy, C.J., and White, V.E., 2021, Water resources of Grant Parish, Louisiana: U.S. Geological Survey Fact Sheet 2020–3064, 6 p., https://doi.org/10.3133/fs20203064.

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Year Published: 2021

Model estimated baseflow for streams with endangered Atlantic Salmon in Maine, USA

We present a regression model for estimating mean August baseflow per square kilometer of drainage area to help resource managers assess relative amounts of baseflow in Maine streams with Atlantic Salmon habitat. The model was derived from mean August baseflows computed at 31 USGS streamflow gages in Maine. We use an ordinary least squares...

Lombard, Pamela J.; Dudley, Robert; Collins, Matthias J.; Saunders, Rory; Atkinson, Ernie

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Year Published: 2021

Hydraulic modeling at selected dam-removal and culvert-retrofit sites in the northeastern United States

Aquatic connectivity projects, such as removing dams and modifying culverts, have substantial benefits. The restoration of natural flow conditions improves water quality, sediment transport, aquatic and riparian habitat, and fish passage. These projects can also decrease hazards faced by communities by lowering water-surface elevations of flood...

Olson, Scott A.; Simeone, Caelan E.
Olson, S.A., and Simeone, C.E., 2021, Hydraulic modeling at selected dam-removal and culvert-retrofit sites in the northeastern United States: U.S. Geological Survey Scientific Investigations Report 2021–5056, 37 p., https://doi.org/10.3133/sir20215056.

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Year Published: 2021

Increasing hydroperiod in a karst-depression wetland based on 165 years of simulated daily water levels

The hydrology of seasonally inundated depression wetlands can be highly sensitive to climatic fluctuations. Hydroperiod—the number of days per year that a wetland is inundated—is often of primary ecological importance in these systems and can vary interannually depending on climate conditions. In this study we re-examined an existing hydrologic...

Cartwright, Jennifer M.; Wolfe, William J.

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Year Published: 2021

Approaches for assessing long-term annual yields of highway and urban runoff in selected areas of California with the Stochastic Empirical Loading and Dilution Model (SELDM)

The California Department of Transportation, commonly known as CalTrans, and other municipal separate storm sewer system permittees in California as well as other State departments of transportation nationwide need information about potential loads and yields (loads per unit area) of constituents of concern in stormwater runoff and discharges from...

Granato, Gregory E.; Friesz, Paul J.
Granato, G.E., and Friesz, P.J., 2021, Approaches for assessing long-term annual yields of highway and urban runoff in selected areas of California with the Stochastic Empirical Loading and Dilution Model (SELDM): U.S. Geological Survey Scientific Investigations Report 2021–5043, 37 p., https://doi.org/10.3133/sir20215043.

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Year Published: 2021

Metal accumulation varies with life history, size, and development of larval amphibians

Amphibian larvae are commonly used as indicators of aquatic ecosystem health because they are susceptible to contaminants. However, there is limited information on how species characteristics and trophic position influence contaminant loads in larval amphibians. Importantly, there remains a need to understand whether grazers (frogs and...

Smalling, Kelly; Oja, Emily Bea; Cleveland, Danielle; Davenport, Jon D; Eagles-Smith, Collin; Campbell Grant, Evan H.; Kleeman, Patrick M.; Halstead, Brian J.; Stemp, Kenzi M; Tornabene, Brian J.; Bunnell, Zachary J; Hossack, Blake R.

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Year Published: 2021

Grassland live fractional cover map creation and Geographic Information System (GIS) analysis for rangeland management supporting Kenya Northern Rangelands Trust Conservancies

The handbooks and synchronized MP4 recordings provide hands-on instruction for creating and analyzing vegetation live fractional cover (LFC) maps. The methods and protocols used in the instruction materials follow those developed and recorded in Rangoonwala and Ramsey (2019). The LFC mapping and geographic information system (GIS) analyses...

Rangoonwala, Amina; Ramsey, Elijah
Rangoonwala, A., and Ramsey, E., III, 2021, Grassland live fractional cover map creation and Geographic Information System (GIS) analysis for rangeland management supporting Kenya Northern Rangelands Trust Conservancies: U.S. Geological Survey Report 2021–1001, 59 p., https://doi.org/10.3133/ofr20211001.

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Year Published: 2021

Airborne geophysical surveys of the lower Mississippi Valley demonstrate system-scale mapping of subsurface architecture

The Mississippi Alluvial Plain hosts one of the most prolific shallow aquifer systems in the United States but is experiencing chronic groundwater decline. The Reelfoot rift and New Madrid seismic zone underlie the region and represent an important and poorly understood seismic hazard. Despite its societal and economic importance, the shallow...

Minsley, Burke J; Rigby, James Robert; James, Stephanie R.; Burton, Bethany L.; Knierim, Katherine J.; Pace, Michael; Bedrosian, Paul A.; Kress, Wade

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Year Published: 2021

Decision analysis of barrier placement and targeted removal to control invasive carp in the Tennessee River Basin

Controlling range expansion of invasive carp (specifically Hypophthalmichthys spp.) on the Tennessee River is important to conserve the ecological and economic benefits provided by the river. We collaborated with State and Federal agencies (the stakeholder group) to develop a decision framework and decision support model to evaluate strategies to...

van der Burg, Max Post; Smith, David R.; Cupp, Aaron R.; Rogers, Mark W.; Chapman, Duane C.
Post van der Burg, M., Smith, D.R., Cupp, A.R., Rogers, M.W., and Chapman, D.C., 2021, Decision analysis of barrier placement and targeted removal to control invasive carp in the Tennessee River Basin: U.S. Geological Survey Open-File Report 2021–1068, 18 p., https://doi.org/10.3133/ofr20211068.

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Water Use Site Retrieval Page Icon
July 4, 2016

In 1977, the Congress of the United States recognized the need for uniform, current, and reliable information on water use and directed the U.S. Geological Survey (USGS) to establish a National Water-Use Information Program (NWUIP) to complement the Survey's data on the availability and quality of the Nations water resources.

Image: Public Wells
August 14, 1996

Water Well Constrution Reports entered online. 

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An invasive Cuban treefrog in New Orleans, LA.
August 23, 2019

Outstanding in the Field (Ep 4): Amphibian Surveys – Call of the Frog

The USGS Ecosystems Mission Area brings you Outstanding in the Field, a series of stories about our science, our adventures, and our efforts to better understand our fish and wildlife and the ecosystems that support them. In this episode we describe the USGS’s efforts to track frog populations in the southeast United States. 
 

Forecasted Gulf Coast beach erosion due to Hurricane Barry
July 12, 2019

Barry's wave, surge likely to affect beaches in four states

This Coastal Change Storm Hazard Team map was created Friday, July 12, 2019 and shows forecast beach erosion (the strip of colored bars closest to the coast), overwash (middle strip) and inundation (outer strip) effects of Tropical Storm Barry’s predicted landfall in Louisiana. See https://marine.

...
Baches forecast to be affected by Hurricane Barry
July 12, 2019

Barry's wave, surge likely to affect beaches in four states

This Coastal Change Storm Hazard Team map was created Friday, July 12, 2019 and shows forecast beach erosion (the strip of colored bars closest to the coast), overwash (middle strip) and inundation (outer strip) effects of Tropical Storm Barry’s predicted landfall in Louisiana. See https://marine.

...
April 16, 2019

Variable Warming Upper Midwest Lakes and Implications for Sport Fish

Climate change is predicted to alter sport fish communities in Midwestern lakes, but managers currently have limited information on individual lakes that can be used to set local expectations or intervene with mitigation strategies. Northeast and North Central CASC supported researchers, with strong participation from the Midwest Glacial Lakes Partnership, have combined

March 27, 2019

Testing New Drone Technology to Measure Floodwaters

A USGS crew used new drone technology to test and evaluate new technology to measure water speed from the air without touching the water. This drone footage was taken on the Missouri River at Hermann, Missouri on March 27, 2019. Scientists compared these new method results to the conventional way of taking measurements from a boat. 

This work is a part of a national

USGS crews respond to flooding on the Big Sioux River
March 17, 2019

USGS crews respond to flooding on the Big Sioux River

USGS technician Chris Broz helps take water measurements on the Big Sioux River during record flooding in March, 2019.

USGS technician stands next to a boat on a flooded and debris-filled landscape
March 17, 2019

Spring 2019 Flooding - Big Sioux River, Akron, IA

After record flooding on the Big Sioux River, USGS crews mobilized to take important water measurements.

A USGS technician deploys a water measurement tool from a bridge to measure floodwaters
March 16, 2019

Spring 2019 Flooding - Big Sioux River, Hawarden, IA

After record flooding on the Big Sioux River, USGS crews mobilized to take important water measurements.

March 16, 2019

Spring 2019 Flooding - Big Sioux River

After record flooding on the Big Sioux River, USGS crews mobilized to take important water measurements.

Image from an application that navigates users through USGS National Oil and Gas Assessment Provinces
November 14, 2018

National Oil and Gas Assessment Provinces

This is a graphic from the USGS National Oil and Gas Assessment Explorer application, which allows user to drill into 70 oil and gas assessment provinces throughout the United States.

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Prime Hook National Wildlife Refuge UVVR
May 26, 2021

Scientists developed high-resolution imagery of coastal wetlands to identify the most vulnerable marshes across the US  

Aerial view of a southeast Louisiana coastal marsh
May 24, 2021

Coastal ecosystems, like wetlands, may be smaller in size when compared to say, a forest, but they have the ability to sequester more carbon per unit area, making them an incredible climate change mitigation tool

CGG RESOLVE in flight
May 20, 2021

Editor:  In the public interest and in accordance with Federal Aviation Administration regulations, the USGS is announcing this low-level airborne project.  Your assistance informing the local communities is appreciated.  

Dead trees in a tidal marsh
May 17, 2021

Scientifically speaking, sequestration refers to the capture and storage of an element, like carbon, in the environment.   

Coastwide Reference Monitoring System - Boardwalk at CRMS1277
May 10, 2021

These water-dwelling plants are found in aquatic ecosystems, including wetlands.

Haploid specimen
April 7, 2021

This scientific advancement can lead to the development of new genetic markers that will help scientists distinguish between pallid sturgeon and the shovelnose sturgeon, another sturgeon species that looks similar but is more common.

Friday's Hurricane Delta Coastal Change Forecast
October 9, 2020

Editor’s note: This story updates and replaces a story published October 8, reflecting a new forecast that reduces the extent of Hurricane Delta’s impacts on central Gulf Coast sandy shorelines. 

To learn more about USGS’s role in providing science to decision makers before, during and after Hurricane Delta, visit www.usgs.gov/delta   

A USGS field team measures spring floodwaters at Chesapeake bay's largest tributary.
May 12, 2020

U.S. Geological Survey field crews are measuring flooding across the country as spring weather is in full swing. Warming temperatures, increased precipitation and snowmelt have caused moderate to major flooding in the upper Midwest, East Coast, Central Plains and the Southeast portions of the country.

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