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MODFLOW-NWT Model Used to Evaluate Stream Capture Related to Groundwater Pumping, Lower Humboldt River Basin, Nevada (ver. 1.1, March 2024) A three-dimensional groundwater flow model using MODFLOW-NWT was developed to evaluate historical and potential stream capture in the lower Humboldt River Basin, Nevada. The Humboldt River Basin is the only river basin that is contained entirely within the state of Nevada. The effect of groundwater pumping on the Humboldt River is not well understood. Tools are needed to determine stream capture and manage groundwater pumping in the Humboldt River Basin. Previous work has demonstrated that the river’s surface-water resource is sensitive to groundwater withdrawals, which have steadily increased since the 1950s for agriculture, municipal, and mining uses. A numerical groundwater flow model was developed for the purpose... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Capture, Groundwater Model, Humboldt River Basin watershed, Hydrology, InlandWaters, All tags... Lovelock, MODFLOW-NWT, Nevada, Pershing County, Stream Capture, Streamflow Depletion, USGS Science Data Catalog (SDC), Water Resources, environment, geoscientificInformation, groundwater, inlandWaters, lower Humboldt River Basin aquifer system, usgsgroundwatermodel, Fewer tags Geospatial Data to Assess Karst Aquifer Systems Between Albany and Buffalo, New York (ver. 4.0, January 2024) Publicly available geospatial data were identified, collated, and analyzed for a region of karst terrain extending from Albany to Buffalo, New York. A series of geospatial datasets were assembled to determine the location and extent of karstic rock; bedrock geology and depth to bedrock; average water-table configuration; surficial geology; soil type, thickness, and hydraulic conductivity; land cover; and closed depressions in the land surface First release: 2021 Revised: July 2022 (ver. 2.0) Revised: October 2022 (ver. 3.0) Revised: January 2024 (ver. 4.0) Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Albany County, Aquifer Mapping, Basin & Hydrogeologic Characterization, Buffalo, Livingston County, All tags... Monroe County, New York, Schenectady County, USGS Science Data Catalog (SDC), Water Use and Availability Science, aquifer, karst, Fewer tags Coastal Storm Modeling System (CoSMoS) for Central California, v3.1 First Release: November 2018 The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenarios. CoSMoS v3.1 for Central California shows projections for future climate scenarios (sea-level rise and storms) to provide emergency responders and coastal planners with critical storm-hazards information that can be used to increase public safety, mitigate physical damages, and more effectively manage and allocate resources within complex coastal settings. Data for Central California covers the coastline from Pt. Conception to Golden Gate Bridge.... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Beaches, CMHRP, Central California, Central California Coast, Climate change, All tags... ClimatologyMeteorologyAtmosphere, Coastal and Marine Hazards and Resources Program, Coastal erosion, Earth sciences, Erosion, Extreme Weather, Floods, Hazards Planning, Mathematical Modeling, Ocean Waves, Ocean Winds, Oceans, PCMSC, Pacific Coastal and Marine Science Center, San Mateo County, Sea-Level Rise, Sea-level Change, State of California, Storm Surge, Storms, USGS, Water Depth, Wind, climate-change effects, waves, Fewer tags Spatial Coverage for Estimated Baseflow for Streams Containing Endangered Atlantic Salmon in Maine, USA (version 1.1, June 2022) The U.S. Geological Survey (USGS) developed a regression model for estimating mean August baseflow per square mile of drainage area in cooperation with National Oceanic and Atmospheric Administration (NOAA) to help resource managers assess relative amounts of baseflow in streams with Maine Atlantic Salmon habitat (Lombard and others, 2021). The model was applied to each reach of a stream network derived from select National Hydrography Dataset Plus High-Resolution (NHDPlusHR) data in the State of Maine south of 46º 21′55″ N latitude. The spatial coverage developed from the stream network contains model-estimated mean August baseflow per square mile of drainage area as an attribute of each NHDPlusHR reach. Please... Categories: Data, Data Release - Revised; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Atlantic, Atlantic Salmon, August, Distinct Population Segment, Hydrology, All tags... Maine, Maine, Salmon, USGS Science Data Catalog (SDC), Water Resources, baseflow, baseflow, environmental process, environmental proxies, fish, geographic information systems, groundwater, habitat, habitat, refugia, river ecosystems, scientific interpretation, streamflow, Fewer tags Chesapeake Bay Nontidal Network 1985 – 2018: Daily High-Flow and Low-Flow Concentration and Load Estimates (ver. 1.1, November 2021) Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2018 Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). A recently published extension of WRTDS allows users to separate these estimates into high- and low-flow conditions. This data release contains (1) a table of daily high- and low-flow concentration and load estimates for NTN stations between 1985 - 2018 and (2) an R file that contains... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Maryland, New York, Pennsylvania, All tags... USGS Science Data Catalog (SDC), United States, Virginia, WRTDS, Washington DC, West Virginia, flow separation, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags Interferometric synthetic aperture radar data from 2020 for landslides at Barry Arm Fjord, Alaska Subaerial landslides at the head of Barry Arm Fjord in southern Alaska could generate tsunamis (if they rapidly failed into the Fjord) and are therefore a potential threat to people, marine interests, and infrastructure throughout the Prince William Sound region. Knowledge of ongoing landslide movement is essential to understanding the threat posed by the landslides. Because of the landslides' remote location, field-based ground monitoring is challenging. Alternatively, periodic acquisition and interferometric processing of satellite-based synthetic aperture radar data provide an accurate means to remotely monitor landslide movement. Interferometric synthetic aperture radar (InSAR) uses two Synthetic Aperture... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Barry Glacier, Interferometric Synthetic Aperture Radar, Interferometric Synthetic Aperture Radar (InSAR), Prince William Sound, Southern Alaska, All tags... USGS Science Data Catalog (SDC), glacier retreat, glacier retreat, hazard, hazard, landslide, landslides, risk, risk, tsunami, tsunami, Fewer tags Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay Nontidal Network stations: Water years 1985-2018 (ver. 2.0, May 2020) Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2018. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the NTN watersheds. To determine the trend in loads, the annual load results are flow normalized to integrate out the year-to-year variability in river discharge.... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Maryland, New York, Pennsylvania, All tags... USGS Science Data Catalog (SDC), United States, Virginia, WRTDS, Washington DC, West Virginia, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags Digital elevations and extents of regional hydrogeologic units in the Northern Atlantic Coastal Plain aquifer system A digital model of the sedimentary Northern Atlantic Coastal Plain aquifer system is composed of 20 rasters and hydrogeologic unit extent polygons. Rasters describe the top elevations of regional aquifers and confining units at a resolution of 2640 feet (1/2 mile). The rasters are clipped to the extent polygons, which represent the spatial extents of the hydrogeologic units onshore and several miles offshore. This three-dimensional hydrogeologic model was constructed as part of a U.S. Geological Survey Groundwater Resources Program study of groundwater availability in the Northern Atlantic Coastal Plain (NACP) aquifer system, including parts of New York, New Jersey, Delaware, Maryland, Virginia, and North Carolina.... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquia aquifer, Delaware, Delmarva Peninsula, Eastern Shore, Fall Line, All tags... Fall Zone, Groundwater and Streamflow Information Program, Hydrogeology, Lower Chesapeake aquifer, Magothy aquifer, Maryland, Matawan aquifer, Monmouth-Mount Laurel aquifer, New Jersey, New York, North Carolina, Northern Atlantic Coastal Plain, Northern Atlantic Coastal Plain aquifer system, Piney Point aquifer, Potomac-Patapsco aquifer, Potomac-Patuxent aquifer, USGS Science Data Catalog (SDC), Upper Chesapeake aquifer, Virginia, confined, elevations, heterogeneous, hydrogeologic framework, hydrogeologic units, inlandWaters, surficial aquifer, unconfined, unconsolidated, Fewer tags Digitized Maps of the Potentiometric Surface of the Sparta Aquifer in North-Central Louisiana, 1886 to 2012 (ver. 1.1, April 2021) The Sparta aquifer is a primary source of groundwater in north-central Louisiana with more than 60 million gallons of water per day being withdrawn in 2015, and public supply and Industry account for over 90 percent of the water-use demand from the Sparta aquifer (Collier, 2018). Concentrated withdrawals from the Sparta aquifer have caused regional water-level declines within the Sparta aquifer (McGee and Brantly, 2015). Widespread concern about the potential effects of declining water levels has brought forth many questions regarding the sustainability of the aquifer as well as continued saltwater intrusion. In cooperation with the Louisiana Department of Transportation and Development, the U.S. Geological Survey... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Kentucky, Louisiana, Memphis aquifer, Mississippi, All tags... Mississippi Embayment, Missouri, Sparta Aquifer, Sparta Sand, Tennessee, USGS Science Data Catalog (SDC), freshwater extent, groundwater, potentiometric surface, volume change, water-level, Fewer tags Hydrologic, biogeochemical, and radon data collected within and adjacent to the Little Wind River near Riverton, Wyoming (ver. 1.1, January 2019) The U.S. Geological Survey, in collaboration with the Department of Energy, University of Montana, Northern Arapaho Tribe, and Liverpool John Moores University, is studying the interaction of a contaminated groundwater plume enriched in uranium and other trace elements with water, sediment, and biota along a 3 km reach of the Little Wind River in central Wyoming. The source of the contaminants is from a reclaimed uranium mill site near Riverton, Wyoming. This Data Release makes available data collected from June to September, 2016 and August to September, 2017. Data collected during these time periods include: (1) radon, major-ion, and trace-element concentrations in surface-water, groundwater, and pore-water samples;... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Fremont County, Riverton Wyoming, USGS Science Data Catalog (SDC), groundwater and surface-water interaction Rare Earth Element Occurrences in the United States Version 4.0 of this data release provides descriptions of more than 200 mineral districts, mines, and mineral occurrences (deposits, prospects, and showings) within the United States that are reported to contain substantial enrichments of the rare earth elements (REEs). These mineral occurrences include mined deposits, exploration prospects, and other occurrences with notable concentrations of the REEs. The inclusion of a particular mineral occurrence in this database is not meant to imply that it has economic potential. Rather, these occurrences were included to capture the distribution and characteristics of the known, reported REEs deposits in the United States, which are diverse in their geology and resource... Categories: Data, Data Release - Revised; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alaska, Arizona, Arkansas, BLM, Bureau of Land Management, All tags... California, Colorado, Earth MRI, Earth Mapping Resources Initiative, Florida, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Georgia, Idaho, Illinois, MRP, Mineral Resources Program, Mineralogy, Missouri, Montana, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, South Carolina, Tennessee, Texas, U.S. Geological Survey, USGS, USGS Mineral Deposit Database, USGS Science Data Catalog (SDC), USMIN, United States, Virginia, Wyoming, cerium, critical mineral, dysprosium, economic geology, economy, erbium, europium, gadolinium, geographic information systems, geoscientificInformation, geospatial datasets, holmium, lanthanum, location, lutetium, mine, mine sites, mineral commodity, mineral deposit areas, mineral deposit type, mineral deposits, mineral occurrence, mineral resources, natural resource exploration, neodymium, open pit mine, praseodymium, rare earth elements, samarium, surface workings, terbium, thulium, underground workings, ytterbium, yttrium, Fewer tags Bathymetric and supporting data for various water supply lakes in northwestern Missouri, 2019 and 2020 (ver. 1.1, September 2021) Water supply lakes are the primary source of water for many communities in northern and western Missouri. Therefore, accurate and up-to-date estimates of lake capacity are important for managing and predicting adequate water supply. Many of the water supply lakes in Missouri were previously surveyed by the U.S. Geological Survey in the early 2000s (Richards, 2013) and in 2013 (Huizinga, 2014); however, years of potential sedimentation may have resulted in reduced water storage capacity. Periodic bathymetric surveys are useful to update the area/capacity table and to determine changes in the bathymetric surface. From July 2019 to June 2020, the U.S. Geological Survey, in cooperation with the Missouri Department... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry, Bathymetry and Elevation, Bethany, Caldwell County, Daviess County, All tags... DeKalb County, Gallatin, Gentry County, Hamilton, Hamilton Reservoir, Harrison County, Harrison County Lake E-1, King City, King City Reservoir, King City South Lake, Lake Viking, Maryville, Maryville Reservoir, Maysville, Maysville Reservoir, Middle Fork Grand River Reservoir, Missouri, Missouri, Mozingo Lake, Multibeam, New City Lake, Old Bethany City Lake, Stanberry, Stanberry Lake, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Willow Brook Lake, bathymetry, elevation, geoscientificInformation, imageryBaseMapsEarthCover, inlandWaters, location, multibeam sonar, oceans, structure, Fewer tags The State Geologic Map Compilation (SGMC) Geodatabase of the Conterminous United States The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States (https://doi.org/10.5066/F7WH2N65) represents a seamless, spatial database of 48 State geologic maps that range from 1:50,000 to 1:1,000,000 scale. A national digital geologic map database is essential in interpreting other datasets that support numerous types of national-scale studies and assessments, such as those that provide geochemistry, remote sensing, or geophysical data. The SGMC is a compilation of the individual U.S. Geological Survey releases of the Preliminary Integrated Geologic Map Databases for the United States. The SGMC geodatabase also contains updated data for seven States and seven entirely new State geologic... Categories: Data, Data Release - Revised; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alabama, Arizona, Arkansas, California, Colorado, All tags... Connecticut, Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, USGS Science Data Catalog (SDC), Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, age, bedrock geologic units, data services, dike, fault, fold, geographic information systems, geologic contacts, geologic map, geologic maps, geologic time periods, geology, geoscientificInformation, geospatial datasets, igneous rocks, metamorphic rocks, sedimentary rocks, structural geology, surficial geologic units, unconsolidated deposits, Fewer tags Electron microprobe analyses of feldspars and petrographic, geochemical, and geochronologic data from the Hawkeye Granite Gneiss and Lyon Mountain Granite Gneiss in the Adirondacks of New York (ver. 2.0, May 2023) Iron oxide-apatite (IOA) deposits of the Adirondack Mountains of New York locally contain elevated REE concentrations (e.g. Taylor and others, 2019). Critical to evaluating resource potential is understanding the genesis of the IOA deposits that host the REE-rich minerals. As part of this effort, the U.S. Geological Survey (USGS) is conducting bedrock geologic mapping, geochronology, geochemistry, and geophysics in the region. Published and ongoing research demonstrates the spatial association of IOA deposits with the Lyon Mountain Granite Gneiss (LMG), so understanding the relationship of the LMG to the IOA deposits is important for resource evaluation—however the age and origin of the LMG remain contentious. As... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Adirondack Mountains, Dannemora, Hawkeye, Keene, Lyon Mountain, All tags... Lyonsdale, New York, USGS Science Data Catalog (SDC), chemical analysis, electron probe microanalysis, geochemistry, geoscientificInformation, mineral resources, mineralogy, Fewer tags SPARROW model inputs and simulated streamflow, nutrient and suspended-sediment loads in streams of the Southwestern United States, 2012 Base Year (ver. 2.0, October 2020) The U.S. Geological Survey's (USGS) SPAtially Referenced Regression On Watershed attributes (SPARROW) model was used to aid in the interpretation of monitoring data and simulate streamflow and water-quality conditions in streams across the Southwestern Region of the Unites States. SPARROW is a hybrid empirical/process-based mass balance model that can be used to estimate the major sources and environmental factors that affect the long-term supply, transport, and fate of contaminants in streams. The spatially explicit model structure is defined by a river reach network coupled with contributing catchments. The model is calibrated by statistically relating watershed sources and transport-related properties to monitoring-based... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arizona, California, Colorado, Hydrology, Idaho, All tags... Louisiana, Nevada, New Mexico, Nutrient Loads, Oregon, SPAtially Referenced Regression on Watershed attributes (SPARROW), Spatial analysis, Statistical analysis, Streamflow, Surface-water quality, Suspended-sediment loads, Texas, USGS Science Data Catalog (SDC), Utah, Water Quality, Water Resources, Wyoming, Fewer tags Global reference evapotranspiration for food-security monitoring (ver. 2.1, April 2024) The data are a long-term (1980-present), daily reanalysis of reference evapotranspiration, covering the globe at a spatial resolution of 0.625° Longitude x 0.5° Latitude. Reference evapotranspiration is a measure of evaporative demand, or the "thirst of the atmosphere", basically how much moisture from the surface could evaporate into overpassing air, assuming (i) that enough water is available to evaporate and (ii) the surface is covered with a specific reference crop that completely shades the ground (some other conditions also apply). For this dataset, reference evapotranspiration is derived from the daily implementation of the Penman-Monteith reference evapotranspiration equation (Monteith, 1965) as codified... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Climatology, Remote Sensing, USGS Science Data Catalog (SDC), Water Resources, climatologyMeteorologyAtmosphere, All tags... food-security, geoscientificInformation, global, long-term daily product, reference evapotranspiration, Fewer tags Borehole Erosion Test data, Lower American and Sacramento Rivers, California, 2019 (ver. 4.0, July 2021) Borehole erosion tests were performed to quantify sediment erosion rates as a function of depth below grade and flow speed at locations along the Sacramento and American Rivers in 2019. The dataset consists of: - borehole caliper files describing the initial geometry of the borehole, and its shape after each test flow event, - where available, a digital time series describing discharge into the hole - where available, a digital time series describing water level in the water supply tank - log sheets with details such as test location, date, and personnel - digital log sheets in .pdf format include field-based and laboratory-based soil classification data, see "Drilling log file explanation.txt" for explanation of... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: American River, California, Sacramento, Sacramento River, USGS Science Data Catalog (SDC), All tags... borehole erosion test, erosion, geoscientificInformation, lithology, sediment transport, Fewer tags National Land Cover Database (NLCD) 2016 Products (ver. 3.0, November 2023) The U.S. Geological Survey (USGS), in partnership with several federal agencies, has developed and released four National Land Cover Database (NLCD) products over the past two decades: NLCD 1992, 2001, 2006, and 2011. These products provide spatially explicit and reliable information on the Nation’s land cover and land cover change. To continue the legacy of NLCD and further establish a long-term monitoring capability for the Nation’s land resources, the USGS has designed a new generation of NLCD products named NLCD 2016. The NLCD 2016 design aims to provide innovative, consistent, and robust methodologies for production of a multi-temporal land cover and land cover change database from 2001 to 2016 at 2–3-year... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: GIS, Image processing, Land Use Land Cover Theme, Land cover, NGDA, All tags... National Geospatial Data Asset, None, U.S., U.S. Geological Survey (USGS), US, USGS Science Data Catalog (SDC), United States, biota, digital spatial data, Fewer tags Adirondack New York soil chemistry data, 1992-2017 (ver. 1.1, December 2020) This dataset contains measurements of chemical concentrations of soil samples representing 28 headwater drainage basins completely within the Adirondack Park of New York State (ADK Park), one basin partially in the ADK Park, and one watershed 2 kilometers from the ADK Park boundary. Seven of these watersheds have been sampled 2 or 3 times over periods of 12 to 22 years. Soil samples were collected from pit faces exposed by shoveling. Total mass of organic matter, carbon and nitrogen in the forest floor are also presented for 16 headwater drainage basins in the ADK Park. Forest floor mass data were determined from samples collected with soil corers. The presented data are organized by six projects: the Adirondack... Categories: Data, Data Release - Revised; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Adirondack Park, Adirondack Park, New York, Ambient Monitoring, B horizon, B horizon, All tags... Biogeochemical and Hydrologic Assessment, Ecological Assessment of Human and Natural Impacts, Ecosystem Health, New York, New York, Oa horizon, Oa horizon, Oe horizon, Oe horizon, Soils, USGS Science Data Catalog (SDC), acidic deposition recovery, acidic deposition recovery, forest floor, forest floor, forest soils, forest soils, loss on ignition, loss on ignition, mineral soil, mineral soil, soil acidity, soil acidity, soil aluminum, soil aluminum, soil calcium, soil calcium, soil carbon, soil carbon, soil change, soil change, soil chemistry, soil chemistry, soil horizons, soil horizons, soil magnesium, soil magnesium, soil nitrogen, soil nitrogen, soil organic matter, soil organic matter, soil pH, soil pH, soil profile description, soil profile description, soil science, soil science, soil sodium, soil sodium, soils data, soils data, Fewer tags Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah The geochemical data included here were generated as part of a Technical Assistance Agreement between the U.S. Geological Survey (USGS) and Rio Tinto Exploration based in Salt Lake City, Utah. Beginning in November of 2015, we began a project to reanalyze up to 60,000 archived sample splits originally collected as part of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) project from selected areas in Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah. A small amount (approximately 0.25 g) of sieved <75 micron sample material was retrieved from the USGS National Geochemical Sample Archive for geochemical analysis. These samples were analyzed... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, California, Hydrogeochemistry and Stream Sediment Reconnaissance, Idaho, Montana, All tags... NURE, NURE-HSSR, National Geochemical Sample Archive, National Uranium Resource Evaluation, Nevada, New Mexico, USGS Science Data Catalog (SDC), United States, Utah, chemical analysis, environmental geochemistry, exploration geochemistry, geochemical data, geochemistry, lake sediment, natural resource exploration, sediment chemistry, sediment geochemistry, soil, soil chemistry, spring sediment, stream sediment, unconsolidated deposits, uranium, Fewer tags 1 2 3 4 »