Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Microanalysis of samples from the Coles Hill Uranium Deposit, Pittsylvania County, Virginia, USA Microanalysis of samples from the Coles Hill Uranium Deposit, Pittsylvania County, Virginia, USA
These data are microanalyses of 22 polished thin sections that were examined using a scanning electron microscope (SEM) equipped with an energy dispersive spectrometer (EDS) to identify minerals and observe their relationships at high magnification. Samples are from uranium mineralized core drilled at the Coles Hill uranium deposit, Pittsylvania County, Virginia, and one sample of the...
Mercury Concentrations in Waters, Fish, Plants, and Sediments from Ghana, 2024 Mercury Concentrations in Waters, Fish, Plants, and Sediments from Ghana, 2024
This dataset presents mercury (Hg) and methylmercury (MeHg) concentration data in waters (surface river water and community drinking water), biota, plant, and sediments that were collected across eight communities along the Pra and Ankobra Rivers in Western Ghana. Water and sediment samples were collected in October 2024 from eight rivers along the Ankobra and Pra Rivers, two rivers...
Select elements of concern in surface water of three hydrologic basins (Delaware River, Illinois River and Upper Colorado River) — Data screening for the development of spatial and temporal models Select elements of concern in surface water of three hydrologic basins (Delaware River, Illinois River and Upper Colorado River) — Data screening for the development of spatial and temporal models
This data release is focused on the analysis of surface water concentration data associated with 12 elements of concern from three hydrologic basins. Data is analyzed with respect to: a) reporting limits, b) the extent of censored data, c) co-location with USGS real-time sensor data, and d) median concentrations at the catchment spatial scale. The Proxies Project (under the Water Quality...
Unified antlerless harvest records for firearm white-tailed deer harvest in the Midwestern United States 2001-2023 Unified antlerless harvest records for firearm white-tailed deer harvest in the Midwestern United States 2001-2023
This data set contains harvest regulations and annual harvest for antlerless white-tailed deer in 8 Midwestern US states. The data includes harvest regulations for each unit and year as well as the annual harvest for antlerless white-tailed deer by firearm or during a modern firearm season depending on individual state record keeping. Spatial change of support has been applied to unify...
Historical nickel laterite regions and assay samples in southern Oregon and northern California, USA Historical nickel laterite regions and assay samples in southern Oregon and northern California, USA
This dataset consists of 529 areas of identified nickel laterite in southern Oregon and northern California, compiled in vector shapefile format from six historical publications from 1956 to 1983. Sources include state and federal projects for geologic mapping and critical mineral exploration purposes and are attributed to each polygon. Five original, georeferenced maps are included in...
Principal facts of regional gravity data in the Medicine Bow Mountains, Wyoming, 2022-2024 Principal facts of regional gravity data in the Medicine Bow Mountains, Wyoming, 2022-2024
Gravity data were collected in 2022-2024 to assist in mapping surface and subsurface geology in the Medicine Bow Mountains of southern Wyoming. This data release provides principal facts for 738 new gravity stations that were acquired to supplement existing public gravity data coverage.
Salinas Valley Integrated Hydrologic and Reservoir Operations Model, Monterey and San Luis Obispo Counties, California Salinas Valley Integrated Hydrologic and Reservoir Operations Model, Monterey and San Luis Obispo Counties, California
The Salinas Valley Groundwater Basin in Monterey and San Luis Obispo Counties of California is a highly productive agricultural area, contributes significantly to the local economy, and provides a substantial portion of vegetables and other agricultural commodities to the Nation. Increases in agricultural development and population have put increasing demand on both surface water and...
Data Release: Coordinated efforts toward understanding a mortality event in wild passerines in the eastern United States: Responses, lessons learned and future recommendations Data Release: Coordinated efforts toward understanding a mortality event in wild passerines in the eastern United States: Responses, lessons learned and future recommendations
This data set describes post-mortem examination of avian species from a rapid response to a wildlife health event. We reported on the response to a 2021 mortality event in wild passerines in the eastern US. Early ground efforts by wildlife rehabilitators and veterinarians, with public participation, fueled rapid responses by government agencies including sample submission and evaluation
Data for Development of Regression Equations to Estimate Flow Durations, Low-Flow Frequencies, and Mean Flows in Connecticut using Data Collected through Water Year 2022 Data for Development of Regression Equations to Estimate Flow Durations, Low-Flow Frequencies, and Mean Flows in Connecticut using Data Collected through Water Year 2022
The U.S. Geological Survey (USGS), in cooperation with the Connecticut Department of Energy and Environmental Protection and the Connecticut Department of Transportation, calculated select streamflow statistics and basin characteristics. This U.S. Geological Survey (USGS) data release provides select streamflow statistics and basin characteristics for 118 streamgages in Connecticut and...
Grass carp captured in the Sandusky River, OH, USA, during 2020–2023 using electrofishing and combination methods Grass carp captured in the Sandusky River, OH, USA, during 2020–2023 using electrofishing and combination methods
Data were collected during efforts to remove invasive grass carp (Ctenopharyngodon idella) from the Sandusky River, OH, USA during 2020–2023. The data includes the number of grass carp captured, capture method, total vessel hours, removal effort year, removal effort month, number of non-target species captured, and river kilometer (distance from the river mouth measured in 0.5 kilometer...
Hydraulic Channel Geometry of Selected Tidal Rivers in Coastal Massachusetts, 2024 Hydraulic Channel Geometry of Selected Tidal Rivers in Coastal Massachusetts, 2024
The U.S. Geological Survey (USGS) collected elevation and location data at 24 selected river reaches along the coast of Massachusetts in 2024. These data were collected in cooperation with the Massachusetts Department of Environmental Protection (MassDEP) and the University of Massachusetts at Amherst (UMass Amherst). The 24 tidal rivers were selected based on the following criteria...
Digital Surface Model and Orthoimagery of Iliamna Volcano and Johnson River, Lake Clark National Park, Alaska Digital Surface Model and Orthoimagery of Iliamna Volcano and Johnson River, Lake Clark National Park, Alaska
Aerial photography surveys of Iliamna Volcano and the Johnson River in Lake Clark National Park, Alaska, were conducted in late July and early August 2019 by fixed-wing aircraft to generate updated elevation data and high-quality orthoimagery. The surveys were flown by the National Park Service (NPS) Alaska Regional Office (AKRO) in partnership with the United States Geological Survey...