Reports
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 85162
Cascading consequences and interventions for hazards after wildfire in northern California Cascading consequences and interventions for hazards after wildfire in northern California
This report documents the process and outcomes of a workshop convened by the U.S. Geological Survey in December 2024 to identify cascading postfire hazards and other effects stemming from the 2021 Dixie Fire in northern California and to explore potential intervention strategies. The Postfire Hazards and Consequences Workshop brought together stakeholders with expertise across...
Authors
James R. Meldrum, Brian J. Cornish, Jack R. Friedman, Scott J. Chiavacci, Christopher C. Huber, Savanna Craig, Rudy Schuster
Critter Tales—Adventures in restoration activity book for kids Critter Tales—Adventures in restoration activity book for kids
Authors
Ashley A. Mills, John P. Isanhart, Kimber Petersen, Samantha L. Foster
Simulation of the impacts of spring diversions on streamflow in the Strawberry Creek watershed, San Bernardino County, California, using an integrated hydrological model Simulation of the impacts of spring diversions on streamflow in the Strawberry Creek watershed, San Bernardino County, California, using an integrated hydrological model
The Strawberry Creek watershed, in the San Bernardino Mountains of southern California, features a group of natural springs known as Arrowhead Springs that have been augmented with diversions in the form of sub-horizontal borings and tunnels. Understanding the effects of these structures on streamflow through groundwater capture is crucial for managing surface-water resources in this...
Authors
Derek W. Ryter, Joseph A. Hevesi, Linda R. Woolfenden
Streamflow characterization and effects of Interstate 26 highway construction on water-quality and channel morphology conditions of the French Broad River in Buncombe and Henderson Counties, North Carolina, 2019–22 Streamflow characterization and effects of Interstate 26 highway construction on water-quality and channel morphology conditions of the French Broad River in Buncombe and Henderson Counties, North Carolina, 2019–22
The North Carolina Department of Transportation began a series of highway construction projects to upgrade Interstate 26 (I–26) in Buncombe and Henderson Counties, North Carolina, starting in early 2020. The North Carolina Department of Transportation and the U.S. Geological Survey partnered in 2019 to monitor and assess water-quality and geomorphic conditions throughout the French Broad...
Authors
Charles C. Stillwell, Amanda R. Whaling, Kaitlyn E. Elliott, Jeffrey W. Riley
Coal beneath Federal lands in the United States—Mines, reserves, and resources Coal beneath Federal lands in the United States—Mines, reserves, and resources
The U.S. Geological Survey (USGS) compiled a list of coal mines and tabulated the coal reserves and available coal resources beneath Federal lands in the conterminous United States. Coal resources beneath Federal lands in Alaska are also discussed in this report. In 2024, the 34 coal mines on Federal lands produced more than 261 million short tons of coal. Surface mining is used at 23 of...
Authors
Brian N. Shaffer, Michelle N. Johnston, Scott A. Kinney
Colocating artificial intelligence data centers with energy infrastructure on Federal public lands—A science synthesis and spatial analysis to inform decision making Colocating artificial intelligence data centers with energy infrastructure on Federal public lands—A science synthesis and spatial analysis to inform decision making
Authors
Sarah E. Whipple, Katherine A. Kurth, Catherine A. Nikiel, Andy J. Maguire, Jay R. Alder, Julian. J.T. Reyes, Julian A. Scott, Sarah K. Carter
Coastal barrier resilience and resistance: Analysis and metrics for characterizing coastal state Coastal barrier resilience and resistance: Analysis and metrics for characterizing coastal state
Barrier islands are shaped by a variety of short- and long-term environmental processes such as storms and relative sea-level rise. These islands, found along the estuarine-marine interface, provide ecosystem services including storm surge and wave attenuation, erosion protection to inland marshes, habitat for fish and wildlife, and recreation. Natural resource managers require...
Authors
P. Soupy Dalyander, Nicholas Enwright, Diana Di Leonardo, Christopher J. Kingwill, Travis Swanson, Bree J. Landry
Variability of discharge, nutrients, and Escherichia coli from tile drains in a small agricultural stream, a synoptic study in the School Branch watershed, Hendricks County, Indiana Variability of discharge, nutrients, and Escherichia coli from tile drains in a small agricultural stream, a synoptic study in the School Branch watershed, Hendricks County, Indiana
The U.S. Geological Survey, in cooperation with the Indiana Department of Environmental Management, sampled a 1-mile stream reach of School Branch in Hendricks County, Indiana. Sampling consisted of 24 tile drain sites and surface-water sites both upstream and downstream from the tile drains. This study intended to (1) assess the variability of discharge, nutrients, and Escherichia coli...
Authors
Aubrey R. Bunch, Dawn R. Piotrowski, Christopher M. Kephart, Jeffrey W. Frey
Restoration of Gavia immer (common loon) in Minnesota—2025 annual report Restoration of Gavia immer (common loon) in Minnesota—2025 annual report
In cooperation with the Minnesota Department of Natural Resources, the U.S. Geological Survey monitored 98 Gavia immer (common loon) focal territories and 43 nonfocal territories in north-central Minnesota in 2025. Focal territories are those sampling units from which study inferences can be made. Nonfocal territories were adjacent to focal territories and were observed to monitor common...
Authors
William S. Beatty, Luke J. Fara, Kristin Hall, Kevin P. Kenow, Timothy S. Mitchell, Michael J. Wellik
FLOwPER v3 user’s guide supplement: Field application for collection of FLOw PERmanence field observations FLOwPER v3 user’s guide supplement: Field application for collection of FLOw PERmanence field observations
No abstract available.
Authors
Emily Dawn Heaston, Nathan Chelgren, Sean Winter, Sherri L. Johnson, Jason Dunham, Kristin Jaeger
Hydrogeologic conceptualization of the Arroyos subarea and Northeast Air Force Research Laboratory subarea of the Air Force Research Laboratory, Edwards Air Force Base, Antelope Valley, California, 2017–21 Hydrogeologic conceptualization of the Arroyos subarea and Northeast Air Force Research Laboratory subarea of the Air Force Research Laboratory, Edwards Air Force Base, Antelope Valley, California, 2017–21
Research and testing within the Air Force Research Laboratory at Edwards Air Force Base in the southwestern Mojave Desert has been conducted since the 1950s. This testing requires large quantities of groundwater for cooling and operations involving hazardous constituents that have entered the groundwater. To better understand the potential movement of contaminants through the groundwater...
Authors
Geoffrey Cromwell, Nicole F. Cook, Christina L. Stamos, Sarah U. Neuhaus, Christopher P. Ely, Eric White