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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.
Filter Total Items: 84720
Groundwater hydrology, groundwater and surface-water interactions, water quality, and groundwater-flow simulations for the Wet Mountain Valley alluvial aquifer, Custer and Fremont Counties, Colorado, 2017–19 Groundwater hydrology, groundwater and surface-water interactions, water quality, and groundwater-flow simulations for the Wet Mountain Valley alluvial aquifer, Custer and Fremont Counties, Colorado, 2017–19
In 2017, the U.S. Geological Survey, in cooperation with the Upper Arkansas Water Conservancy District, began a study to provide a comprehensive analysis of the Wet Mountain Valley alluvial aquifer, Custer and Fremont Counties, Colorado. The study included collection of data pertaining to groundwater hydrology, groundwater and surface-water interactions, and water quality in the alluvial...
Authors
Connor P. Newman, Cory A. Russell, Zachary D. Kisfalusi, Suzanne S. Paschke
Evaluating how changing climate and water clarity can affect restoration of native coregonine fishes in midwestern lakes Evaluating how changing climate and water clarity can affect restoration of native coregonine fishes in midwestern lakes
In the upper midwestern United States, coregonine fishes (e.g., ciscoes and whitefishes) have provided a key food source for Indigenous peoples since time immemorial. In the last century, however, several anthropogenic stressors including overfishing, declining quality of key habitat (e.g., dams, algal blooms), and negative interactions with invasive species have led to declines in the...
Authors
David Bunnell, Nicole Lynn Berry, Martin Albert Simonson, Charles P. Madenjian, Kevin Keeler, Joseph Schmitt, Abigail Lynch, Gretchen Hansen, Erin P. Overholt, Peter Jacobson, Casey Schoenbeck, Craig E. Williamson, Tyler D. Ahrenstorff
Integrating sea level rise scenarios into Everglades restoration planning Integrating sea level rise scenarios into Everglades restoration planning
One of the largest and most expensive restoration efforts in the world is occurring in the Everglades, a sub-tropical freshwater wetland system located in southern Florida. This unique ecosystem supports several endangered species, provides flood control for Florida’s large urban population, and provides water for both agriculture and drinking supply within the state. The Comprehensive...
Authors
Laura D’Acunto, Stephanie Romanach, Stephanie Castellano, Mysha Clarke
Methods to determine streamflow statistics based on data through water year 2021 for selected streamgages in or near Wyoming Methods to determine streamflow statistics based on data through water year 2021 for selected streamgages in or near Wyoming
The U.S. Geological Survey (USGS), in cooperation with the Wyoming Water Development Office, developed streamflow statistics for streamgages in and near Wyoming. Statistics were computed for active (through September 30, 2021) and discontinued USGS streamgages with 10 or more years of daily mean streamflow record. Streamflow at each streamgage was assessed for degree of human alteration...
Authors
Daniel W. Armstrong, David A. Lange, Katherine J. Chase
Bathymetric contour maps, surface area and capacity tables, and bathymetric change maps for selected water-supply lakes in Missouri, 2022–23 Bathymetric contour maps, surface area and capacity tables, and bathymetric change maps for selected water-supply lakes in Missouri, 2022–23
Bathymetric data were collected at 13 water-supply lakes around the periphery of Missouri by the U.S. Geological Survey in cooperation with the Missouri Department of Natural Resources and various local agencies, as part of a multiyear effort to establish or update the surface area and capacity tables for the surveyed lakes. Surveys were carried out during the months of April and May in...
Authors
Benjamin C. Rivers, Richard J. Huizinga, Garett J. Waite
Assessing the Feasibility of Reintroducing San Francisco Gartersnakes (Thamnophis sirtalis tetrataenia) to La Honda Creek Open Space Preserve, San Mateo County, California Assessing the Feasibility of Reintroducing San Francisco Gartersnakes (Thamnophis sirtalis tetrataenia) to La Honda Creek Open Space Preserve, San Mateo County, California
Reintroductions are used worldwide to increase the viability of species and restore native ecological communities. The success of reintroductions is usually judged by the establishment of self-sustaining populations, restoration of naturally occurring ecological communities, and the species resuming its ecological function. Recovery for the endangered San Francisco gartersnake (SFGS...
Authors
Jonathan P. Rose, Elliot James Schoenig, Richard Kim, Allison M. Nguyen, Brian J. Halstead