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
3D Elevation Program—Louisiana 3D Elevation Program—Louisiana
Using 3D Elevation Program data, a modern illustration of each State's landscape showcases its elevation differences in vivid detail. Each State has been consistently adjusted and colorized according to its highest and lowest elevations, accentuating differences even in States with low relief. To further emphasize landforms, shaded relief has been added on top of the elevation colors.
Authors
Alexander B. Jonesi, Cindy A. Thatcher, Jason M. Stoker
3D Elevation Program—Maine 3D Elevation Program—Maine
Using 3D Elevation Program data, a modern illustration of each State's landscape showcases its elevation differences in vivid detail. Each State has been consistently adjusted and colorized according to its highest and lowest elevations, accentuating differences even in States with low relief. To further emphasize landforms, shaded relief has been added on top of the elevation colors.
Authors
Alexander B. Jonesi, Cindy A. Thatcher, Jason M. Stoker
3D Elevation Program—Maryland 3D Elevation Program—Maryland
Using 3D Elevation Program data, a modern illustration of each State's landscape showcases its elevation differences in vivid detail. Each State has been consistently adjusted and colorized according to its highest and lowest elevations, accentuating differences even in States with low relief. To further emphasize landforms, shaded relief has been added on top of the elevation colors.
Authors
Alexander B. Jonesi, Cindy A. Thatcher, Jason M. Stoker
3D Elevation Program—Massachusetts 3D Elevation Program—Massachusetts
Using 3D Elevation Program data, a modern illustration of each State's landscape showcases its elevation differences in vivid detail. Each State has been consistently adjusted and colorized according to its highest and lowest elevations, accentuating differences even in States with low relief. To further emphasize landforms, shaded relief has been added on top of the elevation colors.
Authors
Alexander B. Jonesi, Cindy A. Thatcher, Jason M. Stoker
3D Elevation Program—Michigan 3D Elevation Program—Michigan
Using 3D Elevation Program data, a modern illustration of each State's landscape showcases its elevation differences in vivid detail. Each State has been consistently adjusted and colorized according to its highest and lowest elevations, accentuating differences even in States with low relief. To further emphasize landforms, shaded relief has been added on top of the elevation colors.
Authors
Alexander B. Jonesi, Cindy A. Thatcher, Jason M. Stoker
3D Elevation Program—Minnesota 3D Elevation Program—Minnesota
Using 3D Elevation Program data, a modern illustration of each State's landscape showcases its elevation differences in vivid detail. Each State has been consistently adjusted and colorized according to its highest and lowest elevations, accentuating differences even in States with low relief. To further emphasize landforms, shaded relief has been added on top of the elevation colors.
Authors
Alexander B. Jonesi, Cindy A. Thatcher, Jason M. Stoker
3D Elevation Program—Mississippi 3D Elevation Program—Mississippi
Using 3D Elevation Program data, a modern illustration of each State's landscape showcases its elevation differences in vivid detail. Each State has been consistently adjusted and colorized according to its highest and lowest elevations, accentuating differences even in States with low relief. To further emphasize landforms, shaded relief has been added on top of the elevation colors.
Authors
Alexander B. Jonesi, Cindy A. Thatcher, Jason M. Stoker
3D Elevation Program—Missouri 3D Elevation Program—Missouri
Using 3D Elevation Program data, a modern illustration of each State's landscape showcases its elevation differences in vivid detail. Each State has been consistently adjusted and colorized according to its highest and lowest elevations, accentuating differences even in States with low relief. To further emphasize landforms, shaded relief has been added on top of the elevation colors.
Authors
Alexander B. Jonesi, Cindy A. Thatcher, Jason M. Stoker
3D Elevation Program—Montana 3D Elevation Program—Montana
Using 3D Elevation Program data, a modern illustration of each State's landscape showcases its elevation differences in vivid detail. Each State has been consistently adjusted and colorized according to its highest and lowest elevations, accentuating differences even in States with low relief. To further emphasize landforms, shaded relief has been added on top of the elevation colors.
Authors
Alexander B. Jonesi, Cindy A. Thatcher, Jason M. Stoker
Estimating greater sage-grouse population sizes within Oregon, 2017–24 Estimating greater sage-grouse population sizes within Oregon, 2017–24
We fit a binomial mixture (N-mixture) model to lek (breeding area) count data to estimate annual population sizes of greater sage-grouse (Centrocercus urophasianus; sage-grouse) within Oregon between 2017 and 2024. Population estimates were delineated among 24 priority areas for conservation, and additional sources of information were considered, including male-to-female sex ratios, lek...
Authors
Brian G. Prochazka, Austin L. Nash, Shawn T. O’Neil, Skyler T. Vold, Peter S. Coates, Adrian P. Monroe, Cameron L. Aldridge
Southeastern Utah Federal lands science needs survey Southeastern Utah Federal lands science needs survey
Evidence-based scientific information can help support defensible decision making in the management of public lands. This report sought to identify current (2024–25) Federal agency research needs in southeastern Utah and to synthesize common management challenges and questions across jurisdictional boundaries. We implemented a science needs assessment focused on lands managed by the...
Authors
M. Allison Stegner, Jonathan Argov, Liz A. Ballenger, Kimberly Hartwig, Laura Martin, Gerald I. Wakefield, Rebecca A. Weissinger, Michael C. Duniway
Pacific walrus population research Pacific walrus population research
Authors
William S. Beatty, Irina S. Trukhanova