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Groundwater-quality sampling near the French Limited Superfund site, Crosby, Texas, February 2026 Groundwater-quality sampling near the French Limited Superfund site, Crosby, Texas, February 2026
The U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, collected groundwater-quality samples from monitoring wells S1-116 and INT-116 near the French Limited Superfund site in Crosby, Texas on February 26, 2026. This dataset includes depth-to-groundwater levels, field properties, and environmental and quality-control groundwater-quality data...
Data from a nine-year study of benthic macroinvertebrate response to Elwha River dam removal Data from a nine-year study of benthic macroinvertebrate response to Elwha River dam removal
The Elwha River dam removal project—one of the largest in history—provided a rare opportunity to track watershed-scale ecological change. To assess benthic macroinvertebrate (BMI) responses, we sampled floodplain and tributary habitats for three years within each of the pre removal (2004-2006), during removal (2012-2014), and post removal (2015-2017) periods. Sampling sites were grouped...
Environmental DNA Data from an Autonomous Sampler on Northern Lake Champlain Near the U.S.-Canadian Border at Rouses Point, New York Environmental DNA Data from an Autonomous Sampler on Northern Lake Champlain Near the U.S.-Canadian Border at Rouses Point, New York
This dataset provides environmental DNA (eDNA) data from samples collected by an autonomous eDNA sampler on northern Lake Champlain at Rouses Point, New York. The sampler was located less than one mile south of the U.S.-Canadian border. The sampler was operated from May 12, 2026 through July 23, 2026 and collected 24 samples and 4 field controls. The samples were analyzed with...
Deer mouse distribution in the Wyoming Basins Ecoregional Assessment area Deer mouse distribution in the Wyoming Basins Ecoregional Assessment area
Map of deer mouse distribution developed from a probability of occurrence map created using multi-scale vegetation, abiotic, and anthropogenic features.
Flood Frequency Data for Selected Streamgages in the Taiya River Basin, Alaska, 1966–2025 Flood Frequency Data for Selected Streamgages in the Taiya River Basin, Alaska, 1966–2025
This data release provides the source data and results of a flood frequency analysis for a site in the Taiya River Basin, Alaska, that was conducted using USGS PeakFQ software (Siefken and others, 2024). Data are provided for one streamgage, 15056210, Taiya River near Skagway, Alaska, that had 32 years of annual peak-flow record. The data include streamgage information, PeakFQ input (TXT...
Geodetic polygons for an Alaska-Aleutian subduction zone interface earthquake recurrence model Geodetic polygons for an Alaska-Aleutian subduction zone interface earthquake recurrence model
This dataset represents polygons used to approximate areas of geodetic coupling for use in the 2023 update of the USGS National Seismic Hazard Model for Alaska.
Digital database of the Surficial Geologic Map of Nebraska Digital database of the Surficial Geologic Map of Nebraska
Surficial geologic mapping in Nebraska has been conducted primarily at the 1:24,000 scale since the mid-1990s, although there have also been limited efforts to map generalized Quaternary and surficial geology within the state and the region. We compiled and evaluated disparate maps (1:24,000 to 1:1,000,000) and datasets—including geologic, soil and soil parent material, and geomorphic...
Sediment properties, charcoal counts, and radiocarbon dates from the Frazier Mountain paleoseismic site, California Sediment properties, charcoal counts, and radiocarbon dates from the Frazier Mountain paleoseismic site, California
This data release provides geochemical, sedimentological, and geochronological data from interbedded mudflow and marsh deposits from the Frazier Mountain paleoseismic site, California (34.81232°, -118.9034°). The samples were collected to support paleoenvironmental reconstruction of the site and refine several previous investigations of paleoearthquakes along the San Andreas Fault...
Luminescence data associated with depositional timing and fluvial strath terrace abandonment with multiple chronometers near the Stinking Springs fault in southwestern Colorado Luminescence data associated with depositional timing and fluvial strath terrace abandonment with multiple chronometers near the Stinking Springs fault in southwestern Colorado
This data release contains data associated with six infrared stimulated luminescence samples collected to investigate strath terraces along Dutton Creek, near Pagosa Springs, Colorado. The terraces are capped with loess deposits and glacial outwash derived from Fourmile Creek at the edge of the San Juan Mountains. Results reveal evidence for the Bull Lake glaciation and outwash likely...
Geochronological Data for: Age and recurrence of paleoseismic surface faulting at the Dry Canyon trench site, northern Red Rock fault, Red Rock Valley, southwestern Montana Geochronological Data for: Age and recurrence of paleoseismic surface faulting at the Dry Canyon trench site, northern Red Rock fault, Red Rock Valley, southwestern Montana
Prominent scarps across alluvial fans along the northeast Tendoy Mountains in southwest Montana are evidence of late Quaternary surface ruptures on the 34 km-long Red Rock fault. Previous evaluations of the fault scarp characteristics, the distribution and ages of hanging wall alluvial fans, and the attributes of footwall drainage basins led to subdivision of the Red Rock fault into two...
Data for the development of methods for continuous monitoring of fluorescence of dissolved organic matter in karst groundwater of the Edwards aquifer, south-central Texas, 2019–24 Data for the development of methods for continuous monitoring of fluorescence of dissolved organic matter in karst groundwater of the Edwards aquifer, south-central Texas, 2019–24
Widespread urbanization across the Edwards aquifer recharge zone in south-central Texas has prompted the development of new approaches and tools to evaluate current and future groundwater quality. To support sustainable water supply and healthy ecosystems, long-term assessments and the integration of new technologies are essential for understanding spatial and temporal changes in aquifer...
Annotated images of dreissenid mussels (Dreissena spp.) in down-looking color images in Lake Michigan, USA, to support machine learning modeling Annotated images of dreissenid mussels (Dreissena spp.) in down-looking color images in Lake Michigan, USA, to support machine learning modeling
This dataset is comprised of lakebed photographs collected by an autonomous underwater vehicle (AUV) in Lake Michigan, USA. Photos were annotated to identify invasive dreissenid mussels (Zebra and Quagga mussels) for use in machine learning and algorithm development, specifically to train and validate a transformer-based segmentation model (MusselFinder) for automated mussel density...