Data

Borehole lithology data from drillers' log descriptions were compiled for the Salton Sea area and vicinity. This data will be utilized to support hydrogeologic and hydrologic investigations. Data for some parts of the Salton Sea Watershed were already compiled for other USGS reports. These included Borrego Valley (Faunt and others, 2015), and the East Mesa (Shepherd and Rosenberg, 2024)...

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...

Samples from the Alaska Placer Concentrate Collection (APCC) were retrieved from the USGS National Geochemical Sample Archives and submitted for mineralogical analysis at the Colorado School of Mines. The APPC contains samples from placer mining operations throughout Alaska. The original collection contained approximately 5,000 samples that were collected by U.S. Geological Survey...

Samples from the Alaska Placer Concentrate Collection (APCC) were retrieved from the U.S. Geological Survey (USGS) National Geochemical Sample Archives and submitted for mineralogical analysis at the Colorado School of Mines. The APPC contains samples from placer mining operations throughout Alaska. The original collection contained approximately 5,000 samples that were collected by USGS

Ciénegas are freshwater to brackish wetlands in arid and semi-arid regions of North America, although they are primarily found in the southwestern U.S. and northwestern Mexico at elevations usually below 2000 meters. They are associated with groundwater or actively moving fresh water that historically resulted in perennial surface waters persisting for decades to centuries. The extent of...

These data are in one table relating to the selenium concentration (μg/g) in whole blood of adult female emperor geese (Anser canagicus) sampled on the Yukon-Kuskokwim Delta, Alaska in June 2017.

This dataset includes analyses of selenium (Se) in water, sediment, periphyton, and benthic invertebrate and fish tissues from the Kootenai River in Idaho and Montana. The samples were collected as part of a study intended to evaluate selenium distribution and bioaccumulation in the aquatic food webs of the Kootenai River. This dataset includes complete food web sample results from our...

This data release includes estimated Self-Calibrated Palmer Drought Severity Index (scPDSI) values and ancillary information for three data products that had previously been developed for the Pacific Northwest Region (HUC 17). The data products are stored in three child items: 1. National Hydrography Dataset High Resolution Flowlines: This child item contains the flowlines in the...

The U.S. Geological Survey Upper Midwest Environmental Sciences Center collected semi-continuous data from water quality and pressure sensors at four shallow locations in the impounded portion of Pool 13 of the Upper Mississippi River and one location upstream near Savanna, IL between late May and early September 2024. This dataset includes high-frequency conductivity, salinity, total...

The Wyoming-Montana Water Science Center, in cooperation with the Wyoming Department of Environmental Quality, digitized layers to determine the backwater extent behind Willwood Dam on the Shoshone River near Cody, Wyoming from 2012, 2015, 2017, 2019, and 2022 National Agriculture Imagery Program (NAIP) imagery. Digitizing layers of water extents behind Willwood Dam through time allows...

In collaboration with researchers at the University of Puerto Rico, Mayaguez, the U.S. Geological Survey acquired multimethod surface seismic imaging data at 21 sites in Puerto Rico for shear-wave velocity site characterization. These data were collected at both permanent and temporary seismograph stations throughout the island, between March 6 and March 18, 2022. Data were acquired...

To better understand sediment deposition in marsh environments, scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center (USGS-SPCMSC) selected five marsh study sites (Sites 5, 6, 7, 8, and 9) and four nearshore estuarine study sites (Sites 8S, 8D, 9S, 9D) along the Point Aux Chenes Bay shoreline of the Grand Bay National Estuarine Research Reserve...