All Data

This data set is from a study examining the flow of per- and polyfluoroalkyl substances (PFAS) through food webs. The data are PFAS concentrations in gastrointestinal contents of tree swallows.

USGS researchers and technicians comprehensively surveyed each of 150 talus patches for evidence of American pika (Ochotona princeps) occurrence. Occurrence status at each patch was classified as either no pika evidence whatsoever, former pika occurrence, or current pika occurrence. Dataset also includes latitude and longitude, as well as mean elevation of the patch and the surveyor...

This U.S. Geological Survey (USGS) data release includes necessary information and data to support the analysis and interpretations of nutrient loading and sources of nitrogen in the associated companion USGS Scientific Investigations Report. This data release includes (1) summary statistics for discrete water-quality data collected at eight water-quality-monitoring stations in the...

This dataset records Cladophora and associated benthic algae, collectively the Cladophora community or submerged aquatic vegetation (SAV), biomass collected during the growing season of 2023 at stations located along the U.S. shoreline of Lakes Michigan, Huron, Erie, and Ontario. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting...

Mine waste, including mill tailings, could host substantial critical mineral resources. Developing an understanding of the mineral hosts and occurrence of critical minerals in mine waste is essential to evaluating their resource potential. Volcanogenic massive sulfide (VMS) and sedimentary-exhalative (SEDEX) deposits are important global sources of copper, zinc, lead, gold, and silver...

This data release includes laboratory analyses for spider tissue samples collected from 20 sites in riparian areas along streams in the upper Clark Fork Basin in western Montana during July 2023. Samples were collected by the U.S. Geological Survey (USGS) in cooperation with the University of Connecticut. Analyses include 56 elements, percent moisture, and nitrogen and carbon isotopes in...

This dataset contains sample information about the origin of the Desmognathus wrighti and Plethodon jordani salamanders collected from Great Smoky Mountains National Park and sequenced, and their corresponding SNP genotype data. These data were used to examine patterns of genomic structure of these two salamander species within Great Smoky Mountains National Park. The raw sequence data...

This dataset contains clumped isotope compositions for subsamples of modern and early Holocene-age spring discharge tufas of the Las Vegas Formation, Las Vegas Valley, Nevada, USA.

Geologic map geodatabase depicting the geology of the Greater Antilles and Virgin Islands region, including countries of Cuba, Haiti, Dominican Republic, and Jamaica, and territories of Puerto Rico, the U.S. Virgin Islands, the British Virgin Islands, and the Cayman Islands. Database tables include: geologic linework, dikes, folds, geologic units, and geochronologic data.

These data represent movement metrics of adult female grizzly bears and polar bears with and without cubs-of-the-year at seven temporal scales after den departure. Grizzly bear data were collected in the Greater Yellowstone Ecosystem during 2000–2021 and in the Northern Continental Divide Ecosystem during 2003–2022. Polar bear data were collected in the Southern Beaufort Sea during 1986...

This dataset is one table with data collected and derived from polar bears sampled in Alaska from the Southern Beaufort Sea subpopulation during 2000-2023. Collected data includes individual identity, location of observation, observation type, estimated birth year, and demographic information. Data were collected from polar bears that were captured, remotely sampled using biopsy darts...

This data release provides radiochemistry data (210Pb and 137Cs) of two sediment cores, BC01 and BC02, collected during USGS Field Activity 2024-662-FA in 2024 in San Francisco Bay, California, U.S.A., off Alameda and Point Isabel, respectively.