All Data

This U.S. Geological Survey (USGS) Data Release includes phytoplankton data collected from four reservoirs in Kansas, during August 2020 through August 2022. All data are reported as raw calculated values and are not rounded to USGS significant figures. The dataset includes all routine and quality assurance/quality control samples collected at twenty-five locations within Marion...

High resolution fractional tree cover and change over time for Olympic, Mount Rainier, and Glacier National Parks from the mid-1980s to the mid-2020s. Date of annual snapshots of tree cover and the temporal range of change over time in tree cover vary by location. See metadata files associated with individual parks for specific details.

This dataset contains U-Th isotope ratios and trace element abundances for hydrothermal siliceous sinter deposits from several geyser localities in El Tatio Geyser Field, Chile.

This dataset contains hourly moisture content, salinity, and temperature measurements for sediment within a dune profile at Madeira Beach, Florida, USA. The data was collected between January 25, 2023, and August 31, 2023, following impacts from Hurricane Idalia. Data were collected using 5 moisture probes that extended 90 centimeters (cm) below the surface, with sensors spaced 10 cm...

This data release describes data that were contributed to the Global Lakes Ecosystem Observation Network (GLEON) FunAqua project, a global data compilation effort. Goals of the FunAqua project are to document the drivers of global aquatic fungal diversity and determine the breadth of the niche of aquatic fungi locally, globally, and in relation to soil and leaves. Data contributed by the...

The catastrophic, explosive eruption of Mount St. Helens, Washington, on May 18, 1980, is the most well-known eruption of the volcano. Less well known is that the May 18 eruption marked the beginning of a period of eruptive activity that lasted through 1986. Beginning in October 1980, a series of 17 dome-building episodes added millions of cubic meters of lava to the crater floor. Most...

During water years 2016–2023 (a water year is the period from October 1 to September 30 and is designated by the year in which it ends), the U.S. Geological Survey (USGS), in cooperation with the Illinois Environmental Protection Agency (Illinois EPA), operated continuous monitoring stations on eight of the major rivers in Illinois to better quantify nutrient and sediment loadings from...

Geochemical and mineralogical characterization data was collected for samples of the Greenhorn Formation taken from the USGS Portland 1 core, which is stored in the USGS Core Research Center (library number E099 https://my.usgs.gov/crcwc/core/report/11834). The data was integrated with sedimentological descriptions in a manuscript (Flaum and others, 2025) that includes revised...

The U.S. Geological Survey (USGS), in cooperation with the U.S. Department of Energy and Naval Reactors Facility (NRF), collected sediment samples along the Industrial Waste Ditch (IWD) located on the northern boundary of the NRF. Sediment samples were collected at various intervals downstream from the outfall at different positions within the ditch as well as dredge pile sediments...

These data were collected as part of a larger project to support Total Maximum Daily Load (TMDL) modeling in the Big Soos Creek basin. Water temperature, air temperature and sensor depth were collected from four sites in the Big Soos Creek basin; LITTLE SOOS CREEK BELOW LAKE YOUNGS NEAR KENT, WA (USGS site ID 12109400), JENKINS CREEK AT 188TH AVE SE NEAR KENT, WA (USGS site ID 12110300)...

The database for the Washington West 30- by 60-minute quadrangle covers an area of approximately 4,884 square kilometers (1,343 square miles) in and west of the Washington, D.C., metropolitan area. The eastern part of the area is highly urbanized, and more rural areas to the west are rapidly being developed. The area lies entirely within the Chesapeake Bay drainage basin and mostly...

Observations and subtle shifts of aquatic vegetation communities in Lake Erie have USGS researchers concerned about the potential for grass carp and other threats to alter these vegetation communities. Assessing submersed aquatic vegetation (SAV) may contribute to inform the long-term impacts of grass carp, common carp, eutrophication, wind fetch and sedimentation on SAV communities...