Data
Your portal to current and historical data for streamflow, groundwater, water quality, and other topics.
Water Quality Summaries for CO River Basins
Water Quality Summaries for CO River Basins
Summaries of annual water-quality data collected for network of sites in Colorado River basins.
Real-time Water Data
Real-time Water Data
Filter Total Items: 130
Two-way Travel Time (TWTT) In Snowpack, Derived from Software-defined Radar Data Collected by Small, Uncrewed Aircraft Systems (sUAS) in Colorado, 2022-25. Two-way Travel Time (TWTT) In Snowpack, Derived from Software-defined Radar Data Collected by Small, Uncrewed Aircraft Systems (sUAS) in Colorado, 2022-25.
These datasets were collected by a ground penetrating radar unit installed on small Uncrewed Aircraft Systems (sUAS). Data include the two-way travel time (TWTT) for the ground surface (distance between the snow-ground interface and sUAS) and the calculated snow depth. The snow depth TWTT is defined as the time duration in nanoseconds that the electromagnetic wave takes to travel from...
Input and output data used to assess the effects of climate on the temporal variability in streamflow and total dissolved solids loads in the Upper Colorado River Basin, water years 1986-2021 Input and output data used to assess the effects of climate on the temporal variability in streamflow and total dissolved solids loads in the Upper Colorado River Basin, water years 1986-2021
This data release contains the input and output used to assess the potential effect of climate on streamflow and salinity (measured as total dissolved solids [TDS]) yields across the Upper Colorado River Basin from water years 1986 to 2021. This analysis included estimation of the spatiotemporal variability in mean annual climatic variables (air temperature, snow water equivalent...
Ephemeral Stream Channel Stability Data from the Grand Valley, Western Colorado, 2018-21 Ephemeral Stream Channel Stability Data from the Grand Valley, Western Colorado, 2018-21
This U.S. Geological Survey (USGS) data release provides the data used to predict areas with the greatest probability of ephemeral stream channel instability on north side of the Grand Valley in western Colorado, during 2018-20. The USGS developed a method for automatically extracting channel cross-section geometry from existing remotely sensed terrain models. Based on estimated flood...
Invertebrate community datasets from before and after piscicide application in two high elevation Rocky Mountain streams in Colorado, 2015 through 2020 Invertebrate community datasets from before and after piscicide application in two high elevation Rocky Mountain streams in Colorado, 2015 through 2020
In western United States streams, Oncorhynchus virginalis stomias (Greenback Cutthroat Trout; GBCT) was thought to be extinct; however, a genetically verified population was identified and used for subsequent conservation efforts to reestablish populations. To restore native trout habitat, stream reaches upstream of a dispersal barrier are treated with a piscicide (rotenone) to remove...
USGS Dynamic Surface Water Extent (DSWE)-based Inundation Frequencies for Select U.S. Fish and Wildlife Service Mountain-Prairie Region Properties, 1982-2020 USGS Dynamic Surface Water Extent (DSWE)-based Inundation Frequencies for Select U.S. Fish and Wildlife Service Mountain-Prairie Region Properties, 1982-2020
This data release contains grids, in geographic tagged imaged file (.tif) format, summarizing inundation frequency of the U. S. Geological Survey (USGS) Dynamic Surface Water Extent (DSWE) Landsat Science Product at 114 National Wildlife Refuges throughout the U.S. Fish and Wildlife Service (USFWS) Mountain-Prairie Region (Colorado, Kansas, Montana, Nebraska, North Dakota, South Dakota...
Estimates of water-quality concentrations from two watersheds affected by the 2020 Cameron Peak Fire in Larimer County, Colorado Estimates of water-quality concentrations from two watersheds affected by the 2020 Cameron Peak Fire in Larimer County, Colorado
This data repository documents the input files, output files, and RStudio scripts used to quantify changes in water-quality concentrations after the 2020 Cameron Peak Fire in the North Fork Big Thompson River and Buckhorn Creek watersheds using the Weighted Regressions on Time, Discharge, and Season (WRTDS) method. A WRTDS model was developed using 12 years of pre-fire data (2008-August...
Historical simulated snowpack for the Willow Creek and Big Thompson, Colorado watersheds and vicinity, water years 1994-2023 Historical simulated snowpack for the Willow Creek and Big Thompson, Colorado watersheds and vicinity, water years 1994-2023
This data release contains historical SnowModel outputs for the Willow Creek and Big Thompson, CO watersheds and surrounding area. Simulated outputs were produced on a 30 meter (m) geospatial grid and forced using meteorology from the National Land Data Assimilation System (NLDAS-2). These simulations used daily snow water equivalent (SWE) time-series from 13 National Resources...
Analyte concentrations and stable isotopes in fish tissue collected across the upper Colorado River Basin in 2016 and 2017 Analyte concentrations and stable isotopes in fish tissue collected across the upper Colorado River Basin in 2016 and 2017
These data were compiled to examine analyte concentrations, including mercury and selenium, and stable isotopes in native and non-native fish across rivers in the Upper Colorado River Basin. Data were collected in 2016 and 2017. Tissue samples were collected as whole-body or muscle plugs (biopsies). Tissue samples were analyzed for stable isotopes in 772 samples, for selenium and 54...
Salinity Loads at 20-stations in the Colorado River Basin Salinity Loads at 20-stations in the Colorado River Basin
The U.S Geological Survey (USGS), in cooperation with the Bureau of Reclamation (Reclamation), prepares a biennial analysis of salt loading at 20 sites on the Colorado River and its tributaries in Colorado, Wyoming, New Mexico, Utah, and Arizona. These estimates can also be used by Reclamation to measure the effectiveness of the Colorado River Basin Salinity Control Program. Data are...
SUTRA Models Used to Evaluate Reservoir Thermal Energy Storage Performance in the United States SUTRA Models Used to Evaluate Reservoir Thermal Energy Storage Performance in the United States
This data release documents eight 30-year SUTRA simulations summarized in Pepin and others (2025) and provides output from one short (1-year) simulation to provide verification that the model code runs properly. The most recent, but not-yet published, version of SUTRA (version 4.0) was used to evaluate reservoir thermal energy storage performance by simulating radially symmetric...
SnowModel Simulations for the 2022–23 Water Years, near Coal Creek, San Juan Mountains, Colorado, USA SnowModel Simulations for the 2022–23 Water Years, near Coal Creek, San Juan Mountains, Colorado, USA
This data release contains SnowModel snow evolution simulation output from water years 2022 to 2023 (October 1, 2021, through September 30, 2023) on a 100-meter (m) geospatial grid for a 3 kilometer (km) × 2 km model domain near Coal Creek off Coal Bank Pass in the San Juan Mountains in southwest Colorado, USA. The three quantities simulated for this release were snow water equivalent...
Datasets for Colorado River Basin Salinity Interactive Map Datasets for Colorado River Basin Salinity Interactive Map
Since its formation, the Colorado River Basin Salinity Control Forum and its partners have completed a substantial amount of work in an ongoing effort to reduce salinity concentrations and loads in the Colorado River. These efforts and related monitoring have generated a large volume of data and information. This data release includes geospatial datasets that provide information on...