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Hydroacoustic data from central Lake Erie, 2010-2019 Hydroacoustic estimates of fish density are used for fisheries management in central Lake Erie. Hydroacoustic data were collected along up to four cross-lake transects in central Lake Erie July 2010 through July 2019. Software-generated raw variables used for calculating estimates of hydroacoustic fish densities are presented here. Categories: Data; Tags: Aquatic Biology, Great Lakes, Lake Erie, USGS Science Data Catalog (SDC), aquatic biology, All tags... biota, field inventory and monitoring, fishery management, multibeam sonar, transect sampling, Fewer tags Grand Canyon Rio Grande. The Carazones from Chisos Mountains. Brewster County, Texas. 1899. Grand Canyon Rio Grande. The Carazones from Chisos Mountains. Brewster County, Texas. 1899. Categories: Image; Tags: Brewster County, Texas, Hill, R.T. Collection, Photographers, photo print Drill rig on location approximately six miles northeast of Andrews. Andrews County, Texas. 1970. Drill rig on location approximately six miles northeast of Andrews. Andrews County, Texas. May 1970. Categories: Image; Tags: Andrews County, Texas, Brown, R.L. Collection, Photographers, color transparency (slides) West Hills of Pea Colorado Gap. Brewster County, Texas. 1899. West Hills of Pea Colorado Gap, showing hogbacks of white Helderberg chert. Brewster County, Texas. 1899. Categories: Image; Tags: Brewster County, Texas, Hill, R.T. Collection, Photographers, photo print Panorama of Santiago Range, Mount Ord Section. Brewster County, Texas. 1899. Panorama of Santiago Range, Mount Ord Section. Brewster County, Texas. 1899. Categories: Image; Tags: Brewster County, Texas, Hill, R.T. Collection, Photographers, photo print Airborne radiometric survey, Boulder Batholith region, Montana, 2022 This data release provides digital flight line data for a high-resolution airborne radiometric survey over parts of Montana in the vicinity of the Boulder Batholith. The airborne survey was jointly funded by the Earth Mapping Resources Initiative and Kennecott Exploration Company. The survey was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 34,041 line km of magnetic and radiometric data were acquired over an irregular-shaped area of 6178 km2. Data were collected from a helicopter flown at a nominal terrain clearance of 100 meters (m) above topography along E-W flight lines spaced at 200 m intervals. Tie lines were flown in an N-S... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: AASG, Aeroradiometric survey, Airborne geophysical survey, Association of State Geologists, Boulder Mountains, All tags... Boulder River, Broadwater County, Butte, Crow Creek, Deerlodge National Forest, Earth Mapping Resources Initiative, EarthMRI, Economic Geology, Elkhorn Mountains, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Geospatial datasets, Helena, Helena National Forest, Jefferson County, Lewis and Clark County, Little Blackfoot River, MRP, Mineral Resources, Mineral Resources Program, Montana, National Cooperative Geologic Mapping Program, Potassium, Powell County, Prickly Pear Creek, Sedimentology, Structural Geology, Thorium, Twin Bridges, U.S. Geological Survey, USA, USGS, United States, United States of America, Uranium, Whitetail Valley, biota, Fewer tags Limestone Bad Land cliff, Irwin's Canyon, Rio Grande. Texas. 1899. Limestone Bad Land cliff, Irwin's Canyon, Rio Grande. Texas. 1899. Categories: Image; Tags: Hill, R.T. Collection, Photographers, Texas, photo print Decompartmentalization Physical Model (South Florida Water Management District) Periphyton Abundance and Biovolume Data 2017–21 Periphyton is a complex community of detritus, bacteria, fungi, and algae that grows attached to submerged substrates. Assemblage structure data for algae and cyanobacteria from periphyton samples were collected on a monthly basis from 2017 to 2021. Compiled data were reported as absolute abundance (cells) and biovolume per volume as well as absolute abundance (cells) and biovolume per area at four locations increasing in distance East of the L-67 canal in Water Conservation Area 3 (WCA 3) of the Florida Everglades immediately north of Everglades National Park. The periphyton assemblages were analyzed for five sample types including periphyton plates (Plates), invertebrate inclusion and exclusion plates (Inverts),... Categories: Data; Tags: Aquatic Biology, Ecology, Everglades National Park, USGS Science Data Catalog (SDC), Water Quality, All tags... algae, cyanobacteria, diatom, genus, periphyton, species, taxa, taxonomy, Fewer tags No caption provided. No date. No caption provided. No date. Categories: Image; Tags: Rhode Island, photo print Early Estimates of Exotic Annual Grass (EAG) in the Sagebrush Biome, USA, 2024 These datasets provide early estimates of 2024 fractional cover for exotic annual grass (EAG) species and one native perennial grass species on a weekly basis from April to late June. Typically, the EAG estimates are publicly released within 7-13 days of the latest satellite observation used for that version. Each weekly release contains five fractional cover maps along with their corresponding confidence maps for: 1) a group of 16 species of EAGs, 2) cheatgrass (Bromus tectorum); 3) Field Brome (Bromus arvensis); 4) medusahead (Taeniatherum caput-medusae); and 5) Sandberg bluegrass (Poa secunda). These datasets were generated leveraging field observations from Bureau of Land Management (BLM) Assessment, Inventory,... Tags: Arizona, California, Colorado, Field Brome, Great Basin, All tags... Harmonized Landsat Sentinel, Idaho, Kansas, Land Use Change, Montana, NDVI, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, Poa secunda, Remote Sensing, South Dakota, Texas, Texas brome, USGS Science Data Catalog (SDC), United States, Utah, Washington, Wyoming, annual grass, annual herbaceous, cheatgrass, exotic, invasive species, medusahead, nonindigenous species, noxious, perennial grass, red brome, remote sensing, rye brome, sagebrush, soft brome, western United States, Fewer tags Nine Point Mountain from west. Nine Point quadrangle. Brewster County, Texas. 1899. Nine Point Mountain from west. Nine Point quadrangle. Brewster County, Texas. 1899. Categories: Image; Tags: Brewster County, Texas, Hill, R.T. Collection, Photographers, photo print Sierra Rica opposite Presidio Del Norte. Presidio County, Texas. 1899. Sierra Rica opposite Presidio Del Norte. Presidio County, Texas. 1899. Categories: Image; Tags: Hill, R.T. Collection, Photographers, Presidio County, Texas, photo print Detrital zircon U-Pb data for Upper Triassic sandstones of the Auld Lang Syne basin, northwest Nevada, USA This data release includes raw detrital zircon U-Pb data for isolated sandstones in Upper Triassic deposits of the Auld Lang Syne basin of northwest Nevada, USA. Detrital zircon U-Pb data for 11 sandstone samples (3269 zircon U-Pb dates) were acquired via LA-ICP-MS at the University of Arizona LaserChron Center for 11 sandstone samples. Primary insights from the data are twofold: 1) The data provide information about sediment provenance and indicate that sediment of the Auld Lang Syne basin was primarily derived from near the ancestral Ouachita orogen of Texas and Oklahoma. Sediment was transported to the Auld Lang Syne basin by a Late Triassic transcontinental river system, recorded today by the Upper Triassic... Categories: Data; Tags: Great Basin, Nevada, North America, Sedimentology, Stratigraphy, All tags... USGS Science Data Catalog (SDC), geochronology, geology, sedimentology, stratigraphy, zircon, Fewer tags Drying and crushing plant belonging to Charleston Mining Company. Charleston County, South Carolina. 1924. Drying and crushing plant belonging to Charleston Mining Company (subsidiary of V.C.) at the company's pit shown in images 704 and 705. Charleston County, South Carolina. February 22, 1924. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Charleston County, South Carolina, Charleston Mining company, Mills, Mines, Quarries, photo print USGS 3D Elevation Program (3DEP) Broad Agency Announcement and Data Collaboration Announcement Projects from Fiscal Year 2015 to Present These data provide spatial information about USGS 3D Elevation Program (3DEP) Broad Agency Announcement (BAA) and Data Collaboration Announcement (DCA) lidar data acquisition projects from Fiscal Year (FY) 2015 to present, including the FY, state, project name, project size, award recipient, lidar quality level (QL), contracting mechanism, and project description. Categories: Data Release - In Progress; Tags: 3D Elevation Program, 3DEP, BAA, Broad Agency Announcement, DCA, All tags... Data Collaboration Announcement, boundaries, Fewer tags State Geological Survey office building. Nashville, Davidson County, Tennessee. 1927. State Geological Survey office building opposite the State Capitol. Nashville, Davidson County, Tennessee. August 21, 1927. Categories: Image; Tags: Burchard, E.F. Collection, Davidson County, Tennessee, Nashville County, Tennessee, Photographers, photo print Agua Frio Mountain, ten miles west. Brewster County, Texas. 1899. Agua Frio Mountain, ten miles west. Brewster County, Texas. 1899. Categories: Image; Tags: Brewster County, Texas, Hill, R.T. Collection, Photographers, photo print View of large sink hole on rougher trail from Quebradillas to dam site. Aguadilla County, Puerto Rico. 1922. Panorama with image 540. View of large sink hole on rougher trail from Quebradillas to dam site. Aguadilla County, Puerto Rico. January 1922. Categories: Image; Tags: Aguadilla County, Puerto Rico, photo print Limestone escarpment above valley of Culebrinas River. Aguadilla County, Puerto Rico. 1922. Limestone escarpment above valley of Culebrinas River as seen from road between Lares and San Sebastian. Aguadilla County, Puerto Rico. February 1922. Categories: Image; Tags: Aguadilla County, Puerto Rico, photo print Vegetation overhanging crack in limestone in upper valley of Guajataca River. Aguadilla County, Puerto Rico. 1922. Vegetation overhanging crack in limestone in upper valley of Guajataca River. Aguadilla County, Puerto Rico. February 1922. Categories: Image; Tags: Aguadilla County, Puerto Rico, photo print 1 2 3 4 5 ... 8 »