Data

Acid mine drainage originating from underground mine workings discharge to surface water within the Lefthand Creek watershed and may adversely affect downstream aquatic ecosystems and habitats. The U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency (EPA), conducted a series of tracer injection tests to study groundwater transport and mixing...

The National Hydrologic Geospatial Fabric Reference and Derived Hydrofabrics is a geospatial dataset of connected rivers, streams, lakes, catchments, hydrologic locations, and relevant attributes to support multi-scale and integrative hydrologic modeling and analysis. A hydrofabric is a dataset of common and connected hydrologic features built around high-value community datasets and...

This data release accompanies a U.S. Geological Survey study on arroyo formation and sediment transport in the Stinking Water Creek Basin in Rio Blanco County, Colorado, which has undergone land-use change including rangeland grazing and energy development (oil exploration). The datasets include shapefiles of landscape disturbances traced from aerial photographs, sediment chemistry and...

The Upper Cement Creek watershed in southwestern Colorado hosts extensive acid mine drainage and naturally occurring acid rock drainage. Between 2022 and 2024, the U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency, completed synoptic tracer-injection studies and monitored water temperatures in order to evaluate spatial and temporal changes in...

This U.S. Geological Survey (USGS) data release contains data from stream water and groundwater samples collected in July through October 2024 at the Perigo Mine site in Gilpin County, northern Colorado. Data were collected as part of a study aimed at characterizing the local groundwater flow system in the hillslope hosting the mine’s draining crosscut tunnel, and identifying sources of...

This dataset contains site information and flood-frequency analysis results using station skew for 253 streamgaging stations operated by the U.S. Geological Survey (USGS) across Colorado within the Rio Grande Basin and Missouri, Arkansas-White-Red, and Upper Colorado River Basins (2- digit hydrologic unit codes 13, 10, 11, and 14, respectively). Some streamgages included in this study...

The U.S. Geological Survey (USGS), in cooperation with the Colorado Department of Transportation, developed peak-, mean-, and low-streamflow regional-regression equations for natural streamflow in central and western Colorado. A total of 418 streamgages were selected for the study having a minimum of 10 years of unregulated streamflows. This data release presents hydrologic data through...

This U.S. Geological Survey (USGS) data release contains continuous data from the Roaring Fork, Colorado, cosmic-ray neutron sensor (CRNS) soil moisture monitoring network as well as supplemental soil laboratory analyses and discrete field-based measurements collected in 2023 and 2024 for calibration and validation of CRNS data. The network includes 15 CRNS stations located in the...

The U.S. Geological Survey collected low-altitude airborne natural color imagery, surface temperatures and multispectral imagery via a hexacopter uncrewed aircraft system (UAS) for mapping Hoxworth Springs, Clark Well and Buck Springs in the Coconino National Forest in Arizona. Visual imagery was collected in jpg (for color imagery) and TIFF (for thermal imagery and multispectral imagery...

This data release contains audio data collected from 2021 to 2024, expanding on the dataset collected for a 2019 U.S. Geological Survey (USGS) study which tested the use of hydrophones to detect bedload mobilization and identify a streamflow threshold at which bedload began to mobilize in the Upper Colorado River (Kohn and others, 2020). Child item "Stationary Hydrophone Data collected...

This data release contains sensor-based water-quality and discrete stable isotopes of water data collected along the Upper Colorado River. Data collection was made by the University of Colorado at Boulder, Colorado (CO), and the U.S. Geological Survey (USGS) in Lakewood, CO. The water-quality data were collected from an inflatable raft during 5 high flow and 3 low flow sampling campaigns...

Geothermal springs may be connected to both shallow and deep groundwater sources, and identification of variable spring sources may assist with resource management of geothermal systems. Numerous geothermal springs exist near the Yampa River in Steamboat Springs, Colorado and local water and land management agencies could benefit from information on the sources of these springs. This...