Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 237
Date published: February 26, 2019
Status: Completed

2016 Southern Spring Floods

Learn more about USGS flood activities related to the 2016 Southern Spring Floods. These floods were caused by significant amounts of tropical moisture that was funneled through a narrow zone across East Texas, Louisiana, Arkansas, and Mississippi, creating severe flood conditions.

Date published: February 25, 2019
Status: Completed

June 2014 floods in South Dakota, Minnesota, and Iowa

Learn more about USGS flood activities related to the June 2014 Floods in South Dakota, Minnesota, and Iowa.

Date published: February 25, 2019
Status: Completed

May-June 2013 Midwest Floods

Learn more about USGS flood activities related to the May-June 2013 Midwest Floods.

Date published: February 25, 2019
Status: Completed

April-May 2013 Midwest Floods

Learn more about USGS flood activities related to the April-May 2013 Midwest Floods caused by heavy rainfall and late snow-melt in six states.

Date published: February 25, 2019
Status: Completed

Summer 2011 Missouri River Basin flood

Learn more about USGS flood activities related to the 2011 Missouri River Basin Flood resulting from higher-than-average snowmelt runoff combined with heavy spring rains.

Date published: February 25, 2019
Status: Completed

Spring/Summer 2011 Mississippi River Basin Floods

Learn more about USGS flood activities related to the Spring/Summer 2011 floods throughout the Mississippi River Basin.

Date published: February 25, 2019
Status: Completed

May 2011 Louisiana flood

Learn more about USGS flood activities related to the May 2011 flood in Louisiana, including additional real-time monitoring for the Morganza and Bonnet Carre Spillways which were opened to release floodwaters into the Mississippi River.

Date published: February 25, 2019
Status: Completed

April 2011 Arkansas Flood

Learn more about USGS flood activities related to the April 2011 Arkansas Flood.

Date published: February 24, 2019
Status: Active

Urban Waters Federal Partnership—Middle Blue River Basin (Kansas City, Mo.)

Reconnecting people and water is an increasingly important goal in many urban areas. Parks, urban trails, boat ramps, and urban agriculture all are ways that an urban population can interact with nature and improve quality of life.  USGS is participating in gathering the information that will make these projects possible.

Date published: January 29, 2019
Status: Completed

Hurricane Katrina - Documentation of Coastal Change

Aerial video, still photography, and laser altimetry surveys show the nature, magnitude, and spatial variability of coastal changes such as beach erosion, overwash deposition, and island breaching.

Date published: January 28, 2019
Status: Completed

Hurricane Katrina - Before and After Photo Comparisons

Before and after photos from the Chandeleur Islands, Dauphin Island, and Mississippi show coastal change caused by Hurricane Katrina.

Date published: December 7, 2018
Status: Active

Arkoma Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Arkoma Basin Province 5062.

     

    Filter Total Items: 70
    Date published: June 21, 2018

    Louisiana Fact Sheets by Parish

    Fact Sheets for Louisiana by Parish.

    Date published: January 19, 2018

    Oblique Aerial Photography Viewer

    Obique photos offer a unique perspective of the coast. Features such as beach erosion or accretion, dune erosion and overwash can all be clearly characterized in this imagery. It also documents coastal infrastructure, as well as the damage that infrastructure may incur as the result of an impacting hurricane. 

    Date published: January 1, 2018

    Nitrapyrin, 6-CPA, and herbicide concentrations in agricultural soils, subsurface drains, and corresponding streams in the Midwestern US

    Nitrapyrin is a nitrification inhibitor that is co-applied with N-fertilizer in agroecosystems. Over the course of one year (March 2016 to June 2017), 192 water samples from seven streams across Iowa and Illinois were analyzed for nitrapyrin, its degradate 6-chloropicolinic acid (6-CPA), and three widely used herbicides acetochlor, atrazine, and metolachlor. Additional environme

    Date published: January 1, 2018

    Concentrations of Major and Trace Elements in Streambed and Floodplain Sediment along the Middle Big River and Tributaries in the Southeast Missouri Barite District and in Quality-Assurance Samples, 2012-15

    This U.S. Geological Survey (USGS) Data Release contains locations and concentrations of metals in various size fractions in floodplain-core, streambed-sediment samples, and sediment deposited on the flood plain from the December 2015 flood and underlying soils collected from along the Middle Big River and tributaries in the Southeast Missouri Barite District from 2012 to 2015. All sample

    Date published: December 11, 2017

    Gulf of Mexico Dashboard

    The USGS Southeast Regional Office has funded a cross-center collaboration between the Wetland and Aquatic Research Center and the Texas Water Science Center for the development of the Gulf of Mexico Water Dashboard. 

    Date published: October 31, 2017

    Guide to the Plants of Louisiana

    This guide to the vascular plants of Louisiana includes a database of plant characters, a search engine and plant images. Photographs include images of leaves, fruit, flower, stem, bark and other key identification features. Information about plants can be accessed by searching plant lists either by scientific name or common name.

    Date published: October 31, 2017

    Current Conditions for Arkansas - Streamflow

    To view current streamflow conditions for Arkansas click here

    Date published: October 31, 2017

    Current Conditions for Arkansas: Water Quality

    To view current conditions for Arkansas Water Quality click here.

    Date published: October 31, 2017

    Arkansas Groundwater-Quality Network

    To see information on the Arkansas Groundwater-Quality Network click here.

    Date published: October 4, 2017

    Operation Basement: Missouri Precambrian Sample Database

    In 1968, the Missouri Geological Survey (MGS) established the Operation Basement program to address three objectives: a) to obtain drill hole and underground mining data relative to the structure and composition of the buried Precambrian basement; b) to expand mapping in the Precambrian outcrop area and conduct research related to Precambrian geology and mineral resources; and c%2

    Date published: September 1, 2017

    National Water Information System web interface (NWISweb)

    The National Water Information System (NWIS) web application provides access to real-time and historical surface-water, groundwater, water-quality, and water-use data collected at approximately 1.5 million sites across all 50 states.

    Filter Total Items: 4,514
    Publication Thumbnail
    Year Published: 2021

    Groundwater-quality and select quality-control data from the National Water-Quality Assessment Project, January 2017 through December 2019

    Groundwater-quality environmental data were collected from 983 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water Quality Program and are included in this report. The data were collected from six types of well networks: principal aquifer study networks, which are used to assess the quality...

    Kingsbury, James A.; Bexfield, Laura M.; Arnold, Terri; Musgrove, MaryLynn; Erickson, Melinda L.; Degnan, James R.; Tesoriero, Anthony J.; Lindsey, Bruce D.; Belitz, Kenneth
    Kingsbury, J.A., Bexfield, L.M., Arnold, T., Musgrove, M., Erickson, M.L., Degnan, J.R., Tesoriero, A.J., Lindsey, B.D., and Belitz, K., 2021, Groundwater-quality and select quality-control data from the National Water-Quality Assessment Project, January 2017 through December 2019: U.S. Geological Survey Data Series 1136, 97 p., https://doi.org/10.3133/ds1136.

    Publication Thumbnail
    Year Published: 2021

    Optimal allocation of law enforcement patrol effort to mitigate poaching activities

    Poaching is a global problem causing the decline of species worldwide. Optimizing the efficiency of ranger patrols to deter poaching activity at the lowest possible cost is crucial for protecting species with limited resources. We applied decision analysis and spatial optimization algorithms to allocate efforts of ranger patrols throughout a...

    Moore, Jennifer F.; Udell, Bradley; Martin, Julien; Turikunkiko, Ezechiel; Masozera, Michel K.

    Publication Thumbnail
    Year Published: 2021

    Evaluation and application of the Purge Analyzer Tool (PAT) to determine in-well flow and purge criteria for sampling monitoring wells at the Stringfellow Superfund site in Jurupa Valley, California, in 2017

    The U.S. Geological Survey and U.S. Environmental Protection Agency are developing analytical tools to assess the representativeness of groundwater samples from fractured-rock aquifers. As part of this effort, monitoring wells from the Stringfellow Superfund site in Jurupa Valley in Riverside County, California, approximately 50 miles east of Los...

    Harte, Philip T.; Perina, Tomas; Becher, Kent; Levine, Herb; Rojas-Mickelson, Daewon; Walther, Lesley; Brown, Anthony
    Harte, P.T., Perina, T., Becher, K., Levine, H., Rojas-Mickelson, D., Walther, L., and Brown, A., 2021, Evaluation and application of the Purge Analyzer Tool (PAT) to determine in-well flow and purge criteria for sampling monitoring wells at the Stringfellow Superfund site in Jurupa Valley, California, in 2017: U.S. Geological Survey Scientific Investigations Report 2020–5140, 54 p., https://doi.org/10.3133/sir20205140.

    Publication Thumbnail
    Year Published: 2021

    Embryo deformities and nesting trends in Kemp’s ridley sea turtles Lepidochelys kempii before and after the Deepwater Horizon oil spill

    Kemp’s ridley sea turtles Lepidochelys kempii were disproportionately affected by the Deepwater Horizon (DWH) oil spill, which began on 20 April 2010. Embryo deformities were documented in inviable L. kempii eggs before (2008-2010) and after (2011-2013) the DWH spill in 2 Texas (USA) nesting areas (Upper Texas Coast...

    Shaver, Donna J.; Gredzens, Christian; Walker, J. Shelby; Godard-Codding, Céline A. J.; Yacabucci, Janet E.; Frey, Amy; Dutton, Peter H.; Schmitt, Christopher J.

    Publication Thumbnail
    Year Published: 2021

    Assessment of water quality and discharge in the Herring River, Wellfleet, Massachusetts, November 2015 to September 2017

    The U.S. Geological Survey, Cape Cod National Seashore of the National Park Service, and Friends of Herring River cooperated from 2015 to 2017 to assess nutrient concentrations and fluxes across the ocean-estuary boundary at a dike on the Herring River in Wellfleet, Massachusetts. The purpose of this assessment was to characterize environmental...

    Huntington, Thomas G.; Spaetzel, Alana B.; Colman, John A.; Kroeger, Kevin D.; Bradley, Robert T.
    Huntington, T.G., Spaetzel, A.B., Colman, J.A., Kroeger, K.D., and Bradley, R.T., 2021, Assessment of water quality and discharge in the Herring River, Wellfleet, Massachusetts, November 2015 to September 2017: U.S. Geological Survey Scientific Investigations Report 2020–5120, 59 p., https://doi.org/10.3133/sir20205120.

    Publication Thumbnail
    Year Published: 2021

    Per- and polyfluoroalkyl substances (PFAS) in New Hampshire soils and biosolids

    The U.S. Geological Survey, in cooperation with the New Hampshire Department of Environmental Services, is undertaking a study on per- and polyfluoroalkyl substances (PFAS) in soils and biosolids. The study will characterize PFAS concentrations in shallow soil and selected biosolids throughout the State of New Hampshire, conduct laboratory...

    Tokranov, Andrea K.; Schlosser, Kate Emma A.; Marts, Jeffrey M.; Drouin, Anthony F.; Santangelo, Leah M.; Welch, Sydney M.
    Tokranov, A.K., Schlosser, K.E.A., Marts, J.M., Drouin, A.F., Santangelo, L.M., and Welch, S.M., 2021, Per- and polyfluoroalkyl substances (PFAS) in New Hampshire soils and biosolids: U.S. Geological Survey General Information Product 208, 2 p., https://doi.org/10.3133/gip208.

    Publication Thumbnail
    Year Published: 2021

    Enumerating white-tailed deer using unmanned aerial vehicles

    The white‐tailed deer (Odocoileus virginianus) is an ecologically important species in forests of North America. Effective management of forests requires accurate, precise estimates of deer population abundance to plan and justify management actions. Spotlight surveys in combination with distance sampling are a common method of estimating deer...

    Preston, Todd M.; Wildhaber, Mark L.; Green, Nicholas S.; Albers, Janice L.; Debenedetto, Geoffrey P.

    Publication Thumbnail
    Year Published: 2021

    Machine learning models of arsenic in private wells throughout the conterminous United States as a tool for exposure assessment in human health studies

    Arsenic from geologic sources is widespread in groundwater within the United States (U.S.). In several areas, groundwater arsenic concentrations exceed the U.S. Environmental Protection Agency maximum contaminant level of 10 μg per liter (μg/L). However, this standard applies only to public-supply drinking water and not to private-supply, which is...

    Lombard, Melissa; Scannell Bryan, Molly; Jones, Daniel K.; Bulka, Catherine; Bradley, Paul; Backer, Lorraine C.; Focazio, Michael J.; Silverman, Debra T.; Toccalino, Patricia; Argos, Maria; Gribble, Matthew O.; Ayotte, Joseph D.

    Publication Thumbnail
    Year Published: 2021

    Gulf Coast vicariance shapes phylogeographic history of a North American freshwater mussel species complex

    AimFreshwater mussels share habitat and are parasites of freshwater fishes during the larval life stage. Therefore, models of fish biogeography may also explain the historical biogeography of freshwater mussels. We tested this assumption using predictions of three biogeographic models constructed for northern Gulf of Mexico drainages on a...

    Keogh, Sean M.; Johnson, Nathan; Williams, James D.; Randklev, Charles R.; Simons, Andrew

    Publication Thumbnail
    Year Published: 2021

    Population density and stream-habitat relations of the Yellowcheek Darter (Nothonotus moorei) among the headwaters of the Little Red River in Arkansas

    Nothonotus moorei (Yellowcheek Darter [YCD]) is an endangered species endemic to the headwaters of the Little Red River in north-central Arkansas. Population decline, habitat loss and fragmentation, and threats from land use and seasonal drought necessitate monitoring of population density and distribution to determine ecological and habitat...

    Driver, Lucas; Justus, Billy

    Publication Thumbnail
    Year Published: 2021

    Assessment of peak flow scaling and Its effect on flood quantile estimation in the United Kingdom

    Regional flood frequency analysis (RFFA) methods are essential tools to assess flood hazard and plan interventions for its mitigation. They are used to estimate flood quantiles when the at‐site record of streamflow data is not available or limited. One commonly used RFFA method is the index flood method (IFM), which assumes that peak floods...

    Formetta, Giuseppe; Over, Thomas M.; Stewart, Elizabeth

    Publication Thumbnail
    Year Published: 2021

    Reproduction

    Lake charr Salvelinus namaycush are typically fall spawners although one ecotype has populations that spawn during spring and fall (siscowets in Lake Superior). Lake charr are iteroparous (reproduce more than once in a lifetime) with group-synchronous ovarian development and typically spawn once per year. However, lake charr may not...

    W. Goetz, Frederick; Marsden, J. Ellen; Richter, Catherine A.; Tillitt, Donald E.; Sitar, Shawn P.; Riley, Stephen; Krueger, Charles C.

    Filter Total Items: 221
    Swimming paths of control (left) and copper (right) exposed fish demonstrate changes in swimming behavior
    April 16, 2018

    Swimming paths of control (left) and copper (right) exposed fish

    Behavioral Toxicology Laboratory — Columbia, Missouri. Swimming paths of control (left) and copper (right) exposed fish demonstrate changes in swimming behavior detected following exposure to metals. Such changes can impact ability of fish to survive.

    Molecular Devices ImageXpress† High-Content Imaging System
    April 13, 2018

    Molecular Devices ImageXpress† High-Content Imaging System

    High-Content Screening Laboratory — Columbia, Missouri. Molecular Devices ImageXpress High-Content Imaging System

    The zebrafish developmental cardiovascular toxicity high-content screening assay uses a 384-well plate format
    April 13, 2018

    TZebrafish developmental cardiovascular toxicity high-content screen

    The zebrafish developmental cardiovascular toxicity high-content screening assay uses a 384-well plate format to maximize number of treatments and replicates possible on each plate.

    Ozark Spring - a perennial spring in Phelps County, MO
    February 25, 2018

    Ozark Spring - a perennial spring in Phelps County, Missouri

    Ozark Spring is a perennial spring in northern Phelps County, Missouri. It generates a rill that flows into Spring Creek which flows into the Gasconade River. It provides year-round water to livestock in the area.

    Asian carp removal in Missouri
    February 23, 2018

    Asian Carp Removal in Missouri

    In 2018, USGS and partners completed an incredible feat against a harmful aquatic invasive species when over 240,000 pounds of invasive Silver Carp and Bighead Carp were removed from Creve Coeur Lake in Maryland Heights, Missouri.

    Graph of the rate of change in Lousiana coastal wetlands from the 1930s to the present
    December 31, 2017

    Louisiana coastal wetland change rates over time

    Graph of land area change rate in coastal Louisiana from 1932–2016.  The red line approximates the long-term land area change rate. 95 out of 100 statistical analyses would produce a very similar trend (dotted blue lines). Credit: USGS

    Samplers used for sampling hydrophilic organic chemicals from water
    December 31, 2017

    Samplers used for sampling hydrophilic organic chemicals from water

    Passive Sampling Research—Columbia, Missouri. The polar organic chemical integrative sampler (POCIS - on the left) and semipermeable membrane devices (SPMDs - on the right) samplers are used for sampling hydrophilic organic chemicals from water. The SPMDs sampler can also be deployed for air sampling.

    December 31, 2017

    Groundwater use from the Ozark Plateaus aquifer system, 1900 to 2010

    Groundwater use from the Ozark Plateaus aquifer system, 1900 to 2010” is a short video showing modeled groundwater withdrawal rates from the Ozark Plateaus aquifer system (Ozark system) in the central United States. The Ozark Plateaus Groundwater Availability Study aims to quantify current groundwater resources in the Ozark system, evaluate how these resources have changed

    A perspective model of the morphology and geologic framework near Petit Bois Island showing the relationships between seafloor f
    December 31, 2017

    Petis Bois model

    A perspective model of the morphology and geologic framework near Petit Bois Island showing the relationships between seafloor features and the subsurface. The barrier islands rest on the island plaftorm. Petis Bois Pass and offshore shoals are clearly visible from the acoustic surveys. The bathymetry, sidescan sonar, and sediment cores provide information about the extent

    ...
    Cedar Rapids
    December 31, 2017

    Greg Delzer Talking with the Local Press Regarding the AEM Flight Plan

    USGS Scientist, Greg Delzer, talking with the local press regarding the AEM flight plan and details on what USGS and others will be collecting and analyzing.

    Cedar Rapids
    December 31, 2017

    RESOLVE bird used to collect airborne electromagnetic data

    USGS team of scientists were on site before the survey to help answer questions and go over last minute flight and data collection details. (Photo includes individuals from USGS: Iowa/Illinois Water Science Center, Dakota Water Science Center, Denver Crustal Geophysics Group, Office of Communication, and Branch of Geophysics)

    Cedar Rapids
    December 31, 2017

    Pilot and Crew Discussing Flight Plan for collecting AEM Data

    Helicopter pilot and crew discussing flight plan and data collection before lifting off.

    Filter Total Items: 253
    Image shows a drill rig and vehicles near a road at dawn
    June 22, 2018

    The Eagle Ford Group of Texas contains estimated means of 8.5 billion barrels of oil, 66 trillion cubic feet of natural gas, and 1.9 billion barrels of natural gas liquids, according to a new assessment by the U.S. Geological Survey. This estimate consists of undiscovered, technically recoverable resources in continuous accumulations.

    Image shows a screenshot of the Mid-Continent Rift Story Map
    January 25, 2018

    The first great geologic expeditions of the United States set off in the mid-1800s, equipped with mules, rifles, and early scientific instruments. Their goal: to uncover the great mineral wealth of the United States and learn about its earliest geologic history.

    Photo of a young girl drinking water, which likely originated from groundwater sources. 
    December 7, 2017

    A regional assessment of untreated groundwater in the Cambrian-Ordovician aquifer system, which includes parts of Minnesota, Wisconsin, Michigan, Iowa, Illinois, Missouri and Indiana, is now available from the U.S. Geological Survey.

    Exterior of a municipal water pumping station
    December 6, 2017

    Oxygen levels, dissolved minerals among factors responsible for high concentrations of radium in untreated water from aquifer that underlies six states

    Stan Musial bridge in St. Louis, Missouri
    October 5, 2017

    A new assessment of channel bed erosion near 13 highway bridges in the greater St. Louis, Missouri, area is now available in an online report from the U.S. Geological Survey, produced in cooperation with the Missouri Department of Transportation.

    USGS: Science for a changing world
    August 23, 2017

    A non-native insect infestation may not be the only factor involved in the ongoing die-back of a marsh grass in the Mississippi River’s “bird foot delta,” the ecologically and economically important part of coastal Louisiana where the river meets the Gulf of Mexico.

    Image of a red dye study conducted in the Brandon Road Lock on the Des Plaines River near Joliet, Illinois, in 2015.
    June 6, 2017

    U.S. Geological Survey scientists will inject a harmless, bright red fluorescent dye into the auxiliary lock at Locks and Dam 14 on the Mississippi River near Pleasant Valley, Iowa, Tuesday, June 13, 2017, weather permitting. If needed, a backup date is scheduled for June 27, 2017.  

    Two men collecting groundwater samples at a public well in the middle of a grassy field in Texas
    May 31, 2017

    Decades or longer may be needed to fully assess the effects of unconventional oil and gas production on the quality of groundwater used for drinking water in Arkansas, Louisiana, and Texas

    Filter Total Items: 50