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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.
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The 3D Elevation Program national indexing scheme The 3D Elevation Program national indexing scheme
The 3D Elevation Program (3DEP) of the U.S. Geological Survey (USGS) acquires high-resolution elevation data for the Nation. This program has been operating under an opportunity-oriented approach, acquiring light detection and ranging (lidar) projects of varying sizes scattered across the United States. As a result, the national 3DEP elevation layer is subject to data gaps or unnecessary...
Authors
Cindy A. Thatcher, Hans Karl Heidemann, Jason M. Stoker, Diane F. Eldridge
Assessing the risk of non-native marine species in the Bering Sea Assessing the risk of non-native marine species in the Bering Sea
Invasive species are one of the leading global conservation concerns, which can have strong, negative impacts on ecosystems, vulnerable species, and valuable natural resources. Arctic regions have experienced a relatively low number of biological introductions to date. Their geographical remoteness, cold waters, and presence of sea ice present challenging conditions for both non-native...
Authors
Jesika Reimer, Amanda Droghini, Anthony S. Fischbach, Jordan Watson, Bonnie Bernard, Aaron Poe
Suspended sediment, turbidity, and stream water temperature in the Sauk River Basin, western Washington, water years 2012-16 Suspended sediment, turbidity, and stream water temperature in the Sauk River Basin, western Washington, water years 2012-16
The Sauk River is a federally designated Wild and Scenic River that drains a relatively undisturbed landscape along the western slope of the North Cascade Mountain Range, Washington, which includes the glaciated volcano, Glacier Peak. Naturally high sediment loads characteristic of basins draining volcanoes like Glacier Peak make the Sauk River a dominant contributor of sediment to the...
Authors
Kristin L. Jaeger, Christopher A. Curran, Scott W. Anderson, Scott T. Morris, Patrick W. Moran, Katherine A. Reams
Simulation of groundwater flow and pumping scenarios for 1900–2050 near Mount Pleasant, South Carolina Simulation of groundwater flow and pumping scenarios for 1900–2050 near Mount Pleasant, South Carolina
Groundwater withdrawals from the Upper Cretaceous-age Middendorf aquifer in South Carolina have created a large, regional cone of depression in the potentiometric surface of the Middendorf aquifer in Charleston and Berkeley Counties, South Carolina. Groundwater-level declines of as much as 249 feet have been observed in wells over the past 125 years and are a result of groundwater use...
Authors
Jason M. Fine, Matthew D. Petkewich, Bruce G. Campbell
Database for geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington Database for geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington
This publication releases digital versions of the geologic maps in U.S. Geological Survey Miscellaneous Investigations Map 1950 (USGS I-1950), “Geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington” (Kuntz, Rowley, and MacLeod, 1990) (https://pubs.er.usgs.gov/publication/i1950). The 1980 Mount St. Helens eruptions on May 18, May 25...
Authors
Andrew J. Furze, Joseph A. Bard, Joel Robinson, David W. Ramsey, Mel A. Kuntz, Peter D. Rowley, Norman S. MacLeod
Geochemistry of mercury and other constituents in subsurface sediment—Analyses from 2011 and 2012 coring campaigns, Cache Creek Settling Basin, Yolo County, California Geochemistry of mercury and other constituents in subsurface sediment—Analyses from 2011 and 2012 coring campaigns, Cache Creek Settling Basin, Yolo County, California
Cache Creek Settling Basin was constructed in 1937 to trap sediment from Cache Creek before delivery to the Yolo Bypass, a flood conveyance for the Sacramento River system that is tributary to the Sacramento–San Joaquin Delta. Sediment management options being considered by stakeholders in the Cache Creek Settling Basin include sediment excavation; however, that could expose sediments...
Authors
Michelle R. Arias, Charles N. Alpers, Mark C. Marvin-DiPasquale, Christopher C. Fuller, Jennifer L. Agee, Michelle Sneed, Andrew Y. Morita, Antonia Salas
FEQinput—An editor for the full equations (FEQ) hydraulic modeling system FEQinput—An editor for the full equations (FEQ) hydraulic modeling system
Authors
David S. Ancalle, Pablo J. Ancalle, Marian M. Domanski
StreamStats, version 4 StreamStats, version 4
Authors
Kernell G. Ries, Jeremy K. Newson, Martyn J. Smith, John D. Guthrie, Peter A. Steeves, Tana Haluska, Katharine Kolb, Ryan F. Thompson, Richard D. Santoro, Hans W. Vraga
Everglades Depth Estimation Network (EDEN)—A decade of serving hydrologic information to scientists and resource managers Everglades Depth Estimation Network (EDEN)—A decade of serving hydrologic information to scientists and resource managers
Authors
Eduardo Patino, Paul Conrads, Eric D. Swain, James M. Beerens
Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in south San Francisco Bay, California; 2016 Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in south San Francisco Bay, California; 2016
Trace-metal concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica), clam reproductive activity, and benthic macroinvertebrate community structure were investigated in a mudflat 1 kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant (PARWQCP) in south San Francisco Bay, Calif. This report includes the data...
Authors
Daniel J. Cain, Janet K. Thompson, Francis Parchaso, Sarah A. Pearson, A. Robin Stewart, Mathew Turner, David Barasch, Samuel N. Luoma
Northern Prairie Wildlife Research Center—Celebrating 50 years of science Northern Prairie Wildlife Research Center—Celebrating 50 years of science
The Northern Prairie Wildlife Research Center (NPWRC) celebrated its 50-year anniversary in 2015. This report is written in support of that observance. We document why and how the NPWRC came to be and describe some of its many accomplishments and the influence the Center’s research program has had on natural resource management. The history is organized by major research themes, proceeds...
Authors
Jane E. Austin, Terry L. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Gary L. Krapu, Diane L. Larson, L. David Mech, David M. Mushet, Marsha A. Sovada