Unified Interior Regions
Hydrologist, Brent Hall, servicing a water quality sonde on the Missouri River near Omaha.
Science Center LinkNebraska
Nebraska Water Science Center delivers real-time water data for Nebraska streams and aquifers to cooperators and the public. We operate flood alert systems for the Lincoln and Omaha metro areas and create flood inundation maps for partner cities. Our expertise includes groundwater studies and models, water quality, geomorphology, and ecology; allowing for integrated water research in the State.
States L2 Landing Page Tabs
Nebraska Water Science Center delivers real-time water data for Nebraska streams and aquifers to cooperators and the public. We operate flood alert systems for the Lincoln and Omaha metro areas and create flood inundation maps for partner cities. Our expertise includes groundwater studies and models, water quality, geomorphology, and ecology; allowing for integrated water research in the State.
Link to Science CenterUnited States Assessments of Undiscovered Oil and Gas Resources
USGS Energy Resources Program provides periodic assessments of the oil and natural gas endowment of the United States and the World. This website provides access to new, prioritized, assessment results and supporting data for the United States, as part of the Energy Policy and Conservation Act (EPCA).
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.
Nemaha Uplift Province Oil and Gas Assessment
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Nemaha Uplift Province (5055).
Forest City Basin Oil and Gas Assessments
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Forest City Basin Province (5056).
Cambridge Arch-Central Kansas Uplift Oil and Gas Assessment
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Cambridge Arch/Central Kansas Uplift Province (5053).
Denver Basin Oil and Gas Assessments
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Denver Basin Province 5039 in Colorado, Kansas, Nebraska, South Dakota, and Wyoming.
Natural Drought and Flood Histories from Lacustrine Archives
Previous work performed as part of the USGS Holocene Synthesis project illuminated complex centennial-scale patterns of drought and wetter-than-average conditions across the North American continent interior during the past two millennia, where paleorecord data coverage is sparse. In order to explain the patterns of naturally-occurring drought, floods, and storms for the past, identified by...
Bird Banding Laboratory
The Bird Banding Laboratory (BBL) is an integrated scientific program established in 1920 supporting the collection, archiving, management and dissemination of information from banded and marked birds in North America. This information is used to monitor the status and trends of resident and migratory bird populations. Because birds are good indicators of the health of the environment, the...
Groundwater/surface-water interaction near the confluence of the Elkhorn and Lower Platte Rivers
Recent droughts in Nebraska (2000–06; 2012–13) have amplified concerns about the long-term sustainability of groundwater and surface-water resources as well as concerns about the effect of groundwater irrigation on streamflow and water supplies needed to meet wildlife, recreational, and municipal needs. The Lower Platte River Basin-wide Management Plan is currently being developed jointly by...
Improving the Water Quality of Cub Creek: Homestead National Monument Water Quality Partnership
Homestead National Monument of America, (HOME) a National Park Service (NPS) site which commemorates the impacts of the Homestead Act of 1862 is located on the site of one of the first homestead claims filed in the United States of America, a site that was chosen by Daniel Freeman because of the clean abundant water that Cub Creek provided for...
Missouri River Water-Quality Monitoring in Relation to Combined Sewer Overflow Systems near Omaha, Nebraska
In 2012, the USGS Nebraska Water Science Center, in cooperation with the City of Omaha, began monitoring the Missouri River near Omaha to document water-quality changes in the river as the City improved their combined sewer overflow (CSO) system. The monitoring program includes both discrete and continuous data collection at four sampling sites on the Missouri River. Monitoring at each site...
X-ray diffraction data of sediment samples from Hastings, Nebraska
X-ray diffraction (XRD) data was collected by the U.S. Geological Survey (USGS) in 2015 and 2016 on sediment core samples collected near Hastings, Nebraska, by the University of Nebraska at Lincoln (UNL) to inform aquifer sediment composition, mineralogical composition of operationally defined size fractions, and geochemical modeling. The sediment cores were collected near Ha
Domestic Wells in the United States
Domestic wells provide drinking water supply for approximately 40 million people in the United States. Knowing the location of these wells, and the populations they serve, is important for identifying heavily used aquifers, locations susceptible to contamination, and populations potentially impacted by poor-quality groundwater.
Data for assessing the susceptibility of groundwater used for drinking water supply from selected principal aquifers of the Western United States, 2004-2018
Groundwater age distribution and susceptibility to natural and anthropogenic contaminants were assessed for selected principal aquifers of the Western United States: the Central Valley aquifer system (CVAL), the Basin and Range basin-fill aquifers (BNRF), the Rio Grande aquifer system (RIOG), the High Plains aquifer (HPAQ), the Columbia Plateau basaltic-rock aquifers (
National Water Information System (NWIS) Mapper
The NWIS mapper provides access to over 1.5 million sites contained in the USGS National Water Information System (NWIS), including sites where current and historical surface-water, groundwater, springs, and atmospheric data has been collected. Users can search by site type, data type, site number, or place.
Downloadable Data for Forest City Basin Oil and Gas Assessments
GIS Data for Forest City Basin Oil and Gas Assessments
Downloadable Data for Nemaha Uplift Oil and Gas Assessments
GIS Data for Nemaha Uplift Oil and Gas Assessments
Downloadable Data for Cambridge Arch-Central Kansas Uplift Oil and Gas Assessments
GIS Data for Cambridge Arch-Central Kansas Uplift Oil and Gas Assessments
USGS Domestic Continuous (Unconventional) Oil & Gas Assessments, 2000-Present
Interactively explore assessment summary information for continuous (unconventional) assessments conducted at the USGS from 2000-2018. The assessment results data used to generate this visualization can be downloaded here in Excel Format. These data represent all assessment results...
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.
Nebraska Natural Resources Districts Wells on Groundwater Watch
Groundwater well networks for Natural Resources Districts in Nebraska. Real-time, continuous, and periodic data are available.
Digital map of hydrothermal alteration type, key mineral groups, and green vegetation of the northwestern United States derived from automated analysis of ASTER satellite data
Mineral groups identified through automated analysis of remote sensing data acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) were used to generate a map showing the type and spatial distribution of hydrothermal alteration, other exposed mineral groups, and green vegetation across the northwestern conterminous United States. Boolean algebra was used to
Nebraska Real-Time Water Quality on National Real-Time Water Quality
Real-time computed concentrations of water-quality constituents such as suspended sediment, total nitrogen, and total phosphorus are calculated using ordinary least squares regression models. The results of these models, along with direct water-quality measurements, can be viewed here as time-series graphs, or downloaded as tabular data.
Domestic wells provide drinking water supply for approximately 40 million people in the United States. Knowing the location of these wells, and the populations they serve, is important for identifying heavily used aquifers, locations susceptible to contamination, and populations potentially impacted by poor-quality groundwater.
This map shows the provinces assessed by the USGS for undiscovered oil and gas resources.
Digital map of aquifer boundary for the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming - This digital data set represents the extent of the High Plains aquifer in the central United States
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.
Characterization of water-resource threats and needs for U.S. Fish and Wildlife Service National Wildlife Refuges in the Legacy Mountain-Prairie Region, 2020
The U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service (FWS), began a study in 2019 to complete the compilation and quality assurance of water-resource threats and needs data for the 117 National Wildlife Refuges (NWRs) in the FWS Legacy Mountain-Prairie Region (LMPR) and to characterize the water-resource threats and...
Bauch, Nancy J.; Kohn, Michael S.; Caruso, Brian S.A random-walk algorithm for modeling lithospheric density and the role of body forces in the evolution of the Midcontinent Rift
This paper develops a Monte Carlo algorithm for extracting three-dimensional lithospheric density models from geophysical data. Empirical scaling relationships between velocity and density create a 3D starting density model, which is then iteratively refined until it reproduces observed gravity and topography. This approach permits deviations from...
Levandowski, William Brower; Boyd, Oliver S.; Briggs, Richard W.; Gold, Ryan D.Flood-inundation maps for the St. Marys River at Decatur, Indiana
Digital flood-inundation maps for an 8.9-mile reach of the St. Marys River at Decatur, Indiana, were developed by the U.S. Geological Survey (USGS), in cooperation with the Indiana Office of Community and Rural Affairs. The inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site (http://water.usgs.gov/osw/...
Strauch, Kellan R.Hydrostratigraphic interpretation of test-hole and borehole geophysical data, Kimball, Cheyenne, and Deuel Counties, Nebraska, 2011-12
Recently (2004) adopted legislation in Nebraska requires a sustainable balance between long-term supplies and uses of surface-water and groundwater and requires Natural Resources Districts to understand the effect of groundwater use on surface-water systems when developing a groundwater-management plan. The South Platte Natural Resources District...
Hobza, Christopher M.; Sibray, Steven S.Diversity and distribution of mayflies (Ephemeroptera), stoneflies (Plecoptera), and caddisflies (Trichoptera) of the South Platte River Basin, Colorado, Nebraska, and Wyoming, 1873-2010
The U.S. Geological Survey, in cooperation with the C.P. Gillette Museum of Arthropod Diversity (Colorado State University, Fort Collins, Colorado), compiled collection record data to document the historical and present-day occurrence of mayfly, stonefly, and caddisfly species in the South Platte River Basin. Data were compiled from records...
Zuellig, Robert E.; Heinold, Brian D.; Kondratieff, Boris C.; Ruiter, David E.Agricultural herbicide transport in a first-order intermittent stream, Nebraska, USA
The behavior of herbicides in surface waters is a function of many variables, including scale of the watershed, physical and chemical properties of the herbicide, physical and chemical properties of the soil, rainfall intensity, and time of year. In this study, the transport of 6 herbicides and 12 herbicide degradates was examined during the 2004...
Vogel, J.R.; Linard, J.I.Digital map of aquifer boundary for the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
This digital data set represents the extent of the High Plains aquifer in the central United States. The extent of the High Plains aquifer covers 174,000 square miles in eight states: Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This data set represents a compilation of information from digital and paper...
Qi, SharonDecadal-scale changes of nitrate in ground water of the United States, 1988-2004
This study evaluated decadal-scale changes of nitrate concentrations in groundwater samples collected by the USGS National Water-Quality Assessment Program from 495 wells in 24 well networks across the USA in predominantly agricultural areas. Each well network was sampled once during 1988-1995 and resampled once during 2000-2004. Statistical tests...
Rupert, Michael G.Near-decadal changes in nitrate and pesticide concentrations in the South Platte River alluvial aquifer, 1993-2004
The lower South Platte River basin of Colorado and Nebraska is an area of intense agriculture supported by surface-water diversions from the river and ground-water pumping from a valley-fill alluvial aquifer. Two well networks consisting of 45 wells installed in the South Platte alluvial aquifer were sampled in the early 1990s and again in the...
Paschke, S.S.; Schaffrath, K.R.; Mashbum, S.L.Nutrient and Suspended-Sediment Trends in the Missouri River Basin, 1993-2003
Trends in streamflow and concentration of total nitrogen, nitrite plus nitrate, ammonia, total phosphorus, orthophosphorus, and suspended sediment were determined for the period from 1993 to 2003 at selected stream sites in the Missouri River Basin. Flow-adjusted trends in concentration (the trends that would have occurred in the absence of...
Sprague, Lori A.; Clark, Melanie L.; Rus, David L.; Zelt, Ronald B.; Flynn, Jennifer L.; Davis, Jerri V.Historical water-quality data for the High Plains Regional Ground-Water Study Area in Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1930-98
The High Plains aquifer underlies 174,000 square miles in parts of eight States and includes eight primary hydrogeologic units, including the well-known Ogallala Formation. The High Plains aquifer is an important resource, providing water for 27 percent of the Nation?s irrigated agricultural lands in an otherwise dry landscape. Since the 1980?s...
Litke, David W.Organochlorine compounds and trace elements in streambed sediment and fish tissue, South Platte River Basin; Colorado, Nebraska, and Wyoming
Concentration data for organochlorine compounds and trace elements in streambed sediment and fish tissue collected throughout the South Platte River Basin as part of the U.S. Geological Survey's National WaterQuality Assessment (NAWQA) Program were evaluated to determine the following: (1) which organochlorine compounds and trace elements occurred...
Heiny, Janet S.Spring 2019 Flooding - Louisville, NE
After record flooding in the Midwest, USGS crews mobilized to take important water measurements.
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.
Image of the Week - One Year Ago: Eclipse Darkens Nebraska
A total solar eclipse darkened the skies over the United States on Aug. 21, 2017.
Fourteen states were in the path of totality, a 70-mile-wide band under which the moon fully blocked the sun for just under three minutes.
Oshkosh, a town in the Nebraska Sandhills was a prime location for viewing the eclipse. This Landsat 7 image shows the town at 11:33 a.m.
One Year Ago: Total Eclipse Darkens Nebraska Sandhills
A total solar eclipse darkened the skies over the United States on Aug. 21, 2017.
Oshkosh, a town in the Nebraska Sandhills, was a prime location for viewing the eclipse. This Landsat 7 image shows the town at 11:33 a.m. local time on Aug. 18, 2016, a year before the total eclipse.
Ice jam at Ponca Creek at Verdel, NE, February 15, 2017
USGS Nebraska Water Science Center hydrologic technician, Nathan Shultz, collecting depth and velocity data at the USGS streamgaging station 06453600 Ponca Creek at Verdel, Nebraska during an ice jam on February 15, 2017.
Ice-affected stream discharge measurement.
Hydrologic Technician, James Albrecht, from the North Platte Field Office making a measurement of discharge under ice using a Flowtracker acoustic velocity meter on a top-setting wading rod. The string going across the picture is a tagline, used for measuring distance across the channel so that he can note the location of the ice hole he is working in. Typically, the
...Memorial Stadium, University of Nebraska Cornhuskers
This image is a High Resolution Orthoimagery, 6-inch spatial resolution, Lancaster County Dataset, taken in April 2007. High Resolution Orthoimagery looks like a photograph but any distortions caused by the tilt of the camera or topography of the land have been removed, so orthoimages are geospatially accurate and can be used as maps.
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...Agricultural tile drain emptying into waterway.
Agricultural tile drain emptying into waterway.
Tile drain in eastern Nebraska equipped with monitoring instruments.
Tile drain in eastern Nebraska equipped with monitoring instruments.
A storm on the horizon of a grassy meadow.
A storm on the horizon of a grassy meadow in western Nebraska.
Water-level Change in the High Plains Aquifer System
In 1986, Congress directed the USGS to regularly report groundwater-level changes in the High Plains aquifer system. To comply with this directive, the USGS compares water levels measured every two years. By measuring water levels across the entire aquifer in one year, measurements made two years later enable calculation of changes over time. Measured water levels from
Fort Collins, CO – Considered one of the most imperiled ecosystems in the world and home to mule deer, pronghorn, sage-grouse, pygmy rabbits and more than 350 other species of conservation concern, the sagebrush ecosystem continues to shrink rapidly due to a host of growing threats, according to a new scientific report.
The U.S. Geological Survey (USGS) has updated its USMIN Mineral Deposit Database (USMIN) for the mineral commodity niobium, one of 35 mineral commodities declared critical by the U.S. Department of the Interior. Sites in this dataset occur in Alaska, Arkansas, Colorado, Nebraska and Texas.

Summary statistics are now available for this challenge. Thanks again to everyone who contributed!

This challenge is now complete! Thank you to everyone who contributed!

This challenge is mostly complete with a few more points added since last week. See our spatial analyses for tips on remaining communities.

This challenge is moving along nicely with another 30 points added since last week! We performed a spatial analysis to help identify which communities remain.

Volunteers added over 90 points since this challenge was launched - SPECTACULAR!

TNMCorps Mapping Challenges shift to the Midwest with a new challenge for city/town halls in Nebraska and Wyoming!
A team of federal, academic, and NGO researchers conducted a national-scale assessment of mercury bioaccumulation in aquatic ecosystems using dragonfly larvae as biosentinels.
Budget Focuses on Bringing Science, Facilities, and Infrastructure into the 21st Century
Reporters: Do you want to accompany a USGS field crew as they measure flood impacts? Please contact Marisa Lubeck or Jason Lambrecht to coordinate.
Instead of requiring costly dredging to remove sediment buildup behind water reservoirs and diversions, sediment from reservoirs in the Missouri River Basin could actually be used as fracking proppant feedstock, also known as frac sand, according to a recently published U.S. Geological Survey study.