Data Releases

Groundwater salinity presents a challenge to the management of water quality in the Indio subbasin of the Coachella Valley where a growing population is dependent primarily on groundwater for drinking water. The U.S. Geological survey, along with the Colorado River Basin regional water quality control board, are working to provide an assessment of salinity trends and sources in the Indio subbasin

We live-trapped and sampled black-tailed prairie dogs in Badlands National Park and Buffalo Gap National Grassland, South Dakota, 2017-2020. Sampling occurred on sites treated with 0.005% fipronil grain for flea control and plague mitigation, and non-treated sites functioning as experimental baselines. Prairie dogs were trapped, sexed, aged (adult or juvenile by size), weighed to the nearest 5 gra

We trapped small mammals at two sites in Badlands National Park, Pennington County, South Dakota from 2013-2017; two sites in Larimer County, Colorado from 2010-2011; and four sites in Adams County, Idaho from 2014-2017. Each site contained at least one or more treated plots (deltamethrin dust applied to burrows or bait stations for flea control) paired with one or more non-treated plots. We trapp

We monitored Greater Sage-Grouse (Centrocercus urophasianus; hereafter, Sage-Grouse) nests and various habitat characteristics at the nest locations near Susanville in northeastern California, crossing over into northwestern Nevada. We employed a before-after-control-impact (BACI) experimental design to account for spatiotemporal heterogeneity in the system and to derive estimates of relative chan

This dataset contains geochemical data (Total Inorganic Carbon, Total Organic Carbon, Total Nitrogen, δ13C of Organic Carbon, Hydrogen Index, Oxygen Index, Zirconium/Aluminum, and Magnetic Susceptibility) for sediments from one short (~1 m) core collected in 420 m of water in southern Lake Tanganyika, Tanzania.

A series of machine learning (ML) models were developed for Minnesota. The ML models were trained and tested using suspended sediment, bedload, streamflow, and geospatial data to predicted suspended sediment and bedload. Suspended sediment, bedload, and streamflow data were collected during water years 2007 through 2019. The ML models were used to improve understanding of sediment transport proces

The dataset includes specifics on liver tissue and blood plasma anticoagulant rodenticide concentrations measured using high-performance liquid chromatography-tandem mass spectrometry.

This data release contains geochemical data from selected U.S. Geological Survey (USGS) projects from the 1960s-1980s that were previously unpublished as digital data. The objective of those projects was to describe the geology, determine petrologic and geochemical characteristics, or to evaluate the mineral resource potential of Federal Lands and adjacent study areas. These data comprise geochemi

Feral burros (Equus asinus) and horses (E. ferus caballus) inhabiting public land in the western United States are intended to be managed at population levels established to promote a thriving, natural ecological balance. Like many large ungulate populations, management agencies employ aerial surveys to obtain estimates of horse and burro population sizes. Double-observer sightability (MDS) models

These data were collected by the Grand Canyon Monitoring and Research Center (GCMRC) to support riparian vegetation monitoring along the Colorado River between Glen Canyon Dam and the full pool level of Lake Mead. The objectives of the GCMRC riparian vegetation monitoring program are to annually measure and summarize the status (composition and cover) of native and non-native vascular plant specie

This data release contains four GIS shapefiles, one Google Earth kmz file, and five metadata files that summarize results from Interferometric Synthetic Aperture Radar (InSAR) analyses in the Glacier Bay region of Alaska and British Columbia. The principal shapefile (Moving_Ground) and the kmz file (GBRegionMovingGround) contain polygons delineating slow-moving (0.5-6 cm/year in the radar line-of-

Data consist of grain-size distribution by weight in grams of samples collected from the lectostratotype of the Yorktown Formation at Rushmere, Virginia, and from Pipsico Boy Scout Camp, Spring Grove, Virginia. In total, data from 45 samples is included.