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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.
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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Preliminary testing of flow-ecology hypotheses developed for the GCP LCC region Preliminary testing of flow-ecology hypotheses developed for the GCP LCC region
The Ecological Limits of Hydrological Alteration (ELOHA) framework calls for the development of flow-ecology hypotheses to support protection of the flow regime from ecologically harmful alteration due to human activities. As part of a larger instream flow project for the Gulf Coast Prairie Landscape Conservation Cooperative (GCP LCC), regional flow-ecology hypotheses were developed for...
Authors
Shannon K. Brewer, Mary Davis
Regional seismic lines across the Rome trough and Allegheny Plateau of northern West Virginia, western Maryland, and southwestern West Virginia Regional seismic lines across the Rome trough and Allegheny Plateau of northern West Virginia, western Maryland, and southwestern West Virginia
This chapter is a re-release of U.S. Geological Survey Geologic Investigations Map I–2791, of the same title, by Kulander and Ryder (2005), which in printed form consists of two oversized sheets and an accompanying pamphlet. The digital version of this publication, however, is only available as the pamphlet and a collection of all the individual graphics that are found on the two sheets.
Authors
Christopher S. Kulander, Robert T. Ryder
Restoration of Rio Grande cutthroat trout Oncorhynchus clarkii virginalis to the Mescalero Apache Reservation Restoration of Rio Grande cutthroat trout Oncorhynchus clarkii virginalis to the Mescalero Apache Reservation
Rio Grande Cutthroat trout Oncorhynchus clarkii virginalis (RGCT) represents the most southern subspecies of cutthroat trout, endemic to Rio Grande, Canadian, and Pecos basins of New Mexico and southern Colorado. The subspecies currently occupies less than 12% of its historic range. The Mescalero Apache Tribe has partnered with U.S. Geological Survey-New Mexico Cooperative Fish and...
Authors
Bradley W. Kalb, Colleen A. Caldwell
Results of coalbed-methane drilling, Meadowfill Landfill, Harrison County, West Virginia Results of coalbed-methane drilling, Meadowfill Landfill, Harrison County, West Virginia
The U.S. Environmental Protection Agency funded drilling of a borehole (39.33889°N., 80.26542°W.) to evaluate the potential of enhanced coalbed-methane production from unminable Pennsylvanian coal beds at the Meadowfill Landfill near Bridgeport, Harrison County, W. Va. The drilling commenced on June 17, 2004, and was completed on July 1, 2004. The total depth of the borehole was 1,081...
Authors
Leslie F. Ruppert, Michael H. Trippi, Nick Fedorko, William C. Grady, Cortland F. Eble, William A. Schuller
Results of coalbed-methane drilling, Mylan Park, Monongalia County, West Virginia Results of coalbed-methane drilling, Mylan Park, Monongalia County, West Virginia
The Department of Energy National Energy Technology Laboratory funded drilling of a borehole (39.64378°N., 80.04376°W.) to evaluate the potential for coalbed-methane and carbon-dioxide sequestration at Mylan Park, a public park in Monongalia County, W. Va. The total depth of the borehole was 2,525 feet (ft) and contained 1,483.41 ft of Pennsylvanian coal-bearing strata, 739.67 ft of...
Authors
Leslie F. Ruppert, Nick Fedorko, Peter D. Warwick, William C. Grady, James Q. Britton, William A. Schuller, Robert D. Crangle
Seismicity of the Earth 1900-2013 East African Rift Seismicity of the Earth 1900-2013 East African Rift
The East African Rift system (EARS) is a 3,000-km-long Cenozoic age continental rift extending from the Afar triple junction, between the horn of Africa and the Middle East, to western Mozambique. Sectors of active extension occur from the Indian Ocean, west to Botswana and the Democratic Republic of the Congo (DRC). It is the only rift system in the world that is active on a continent...
Authors
Gavin P. Hayes, Eric S. Jones, Timothy J. Stadler, William D. Barnhart, Daniel E. McNamara, Harley M. Benz, Kevin P. Furlong, Antonio Villaseñor
Selected references: Coal geology of the central and southern Appalachian basin Selected references: Coal geology of the central and southern Appalachian basin
No abstract available.
Authors
Leslie F. Ruppert, Susan J. Tewalt, Yomayra A. Roman Colon
Selected references: Coalbed-methane resources of the central and southern Appalachian basin Selected references: Coalbed-methane resources of the central and southern Appalachian basin
No abstract available.
Authors
Erika E. Lentz, Leslie F. Ruppert, Yomayra A. Roman Colon
Selected references: Gas geochemistry of the central and southern Appalachian basin Selected references: Gas geochemistry of the central and southern Appalachian basin
No abstract available.
Authors
Erika E. Lentz, Leslie F. Ruppert, Yomayra A. Roman Colon
Selected references: Oil and gas resources of the central and southern Appalachian basin Selected references: Oil and gas resources of the central and southern Appalachian basin
No abstract available.
Authors
Erika E. Lentz, Leslie F. Ruppert, Yomayra A. Roman Colon
Selected references: Thermal history of the central and southern Appalachian basin Selected references: Thermal history of the central and southern Appalachian basin
No abstract available.
Authors
Erika E. Lentz, Leslie F. Ruppert, Yomayra A. Roman Colon
Standard for the U.S. Geological Survey Historical Topographic Map Collection Standard for the U.S. Geological Survey Historical Topographic Map Collection
This document defines the digital map product of the U.S. Geological Survey (USGS) Historical Topographic Map Collection (HTMC). The HTMC is a digital archive of about 190,000 printed topographic quadrangle maps published by the USGS from the inception of the topographic mapping program in 1884 until the last paper topographic map using lithographic printing technology was published in...
Authors
Gregory J. Allord, Kristin A. Fishburn, Jennifer L. Walter