Data Releases

The LF 2020 Update represents the second step in moving towards an annual update in which the disturbances from the year before are represented in current year products. LANDFIRE (LF) 2019L (Limited Update) was the first step towards this goal but contained limited disturbance information (events and fire program data only) for the years 2017-2019. LF 2020 includes adjustments to...

This data release reports electron probe microanalysis (EPMA) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) data from glass grains in tephra from Hiʻonamoa Gulch, on the southeastern flank of Mauna Loa volcano, Island of Hawaiʻi. The samples were collected from an outcrop approximately two meters thick located at latitude 19.2995 and longitude -155.57744...

This data release contains model files for simulating seasonal estimates of total nitrogen (N) and total phosphorus (P) loads from watersheds draining to the Long Island Sound using a dynamic SPARROW (SPAtially Referenced Regressions On Watershed attributes) model. Input data, output predictions including prediction uncertainty, model control files, and model source code are provided to...

This data release provides tabulated liquefaction potential index (LPI) values for a standard set of earthquake magnitudes (M) in the range 4.5-9, peak ground accelerations (PGA) in the range 0-1.0 g, and groundwater depths (GWD) in the range 0-15 m, as described in detail in Engler and others (2025). We use these data to rapidly interpolate LPI values for any M-PGA-GWD combination. The...

This data release provides the global mosaic of the time-averaged shear-wave velocity in the upper 30 m (Vs30) described by Heath and others (2020a). This map uses the Wald and Allen (2007) slope-based Vs30 as the basemap, and regional maps take precedence where they are available. This is an update to the Heath and others (2020b) data release. Changes include updates to the data sources...

Wetlands play an important role in carbon retention, which is greatly dependent on hydrological conditions. Therefore, the interest in wetland hydrology has increased over recent decades. In wetland hydrology, stable water isotopes (δ2H, δ18O) have found increasing use, as laser-based instruments have become readily available and allow for faster analysis and lower costs. However, the...

This data release provides phytoplankton environmental DNA (eDNA), cyanotoxin biosynthesis gene abundance, phytoplankton microscopy, and cyanotoxin data collected from Ellsworth Rock Gardens in Kabetogama Lake at Voyageurs National Park (USGS site ID: USGS-482947092584401). These samples were collected three times, about every 12 hours, between September 17 and September 18, 2024...

Crystalline graphite is an essential material in components, such as lithium-ion battery anodes. The forecasted demand for graphite for 2040 is predicted to increase by an order of magnitude. To inform decision-makers on viable locations for graphite, the U.S. Geological Survey is conducting a critical mineral resource assessment for graphite, that includes a compilation of modern...

To better understand storm-driven habitat creation and loss, piping plover (Charadrius melodus[BW2.1]) habitat availability was mapped along the Cape Lookout National Seashore, North Carolina (abbreviated in this release as CaLo) for multiple years (2014–2022). To derive the habitat suitability maps, machine learning image classification and other remote sensing tools were used, along...

These data describe counts of bird species, descriptions of their spatial and temporal locations from the observer, and their breeding behaviors. The data were collected between May and July of 2023, 2024 and 2025 by 5 individual observers. The observers also collected data on the date and time of observations, the weather conditions, and other variables influencing the detection of...

This report includes whole rock geochemical data from a newly collected suite of samples from igneous systems across Arizona. The data release includes samples collected in calendar year 2025 that support an ongoing, multi-year project dedicated to characterizing magmatic porphyry systems toward understanding possible basement influence on porphyry style mineralization. This preliminary...

Ar/Ar data are for 1 sample that constrains the cooling age of biotite. The geochronology provides time constraints for the age of gold mineralization in the Tuvatu Gold Mine in Fiji. Samples were provided by Thomas Monecke (Colorado School of Mines). Samples were analyzed in January 2024.