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Hurricane Harvey made landfall near Rockport, Texas on August 25 as a category 4 hurricane with wind gusts exceeding 150 miles per hour. As Harvey moved inland the forward motion of the storm slowed down and produced tremendous rainfall amounts to southeastern Texas and southwestern Louisiana. Historic flooding occurred in Texas and Louisiana as a result of the widespread, heavy rainfall over an 8-day period in Louisiana in August and September 2017. Following the storm event, U.S. Geological Survey (USGS) hydrographers recovered and documented 2,123 high-water marks in Texas, noting location and height of the water above land surface. Many of these high-water marks were used to create flood-inundation maps for...
Freshwater mussels (Unionidae) are among the most imperiled groups of organisms in the world. Unionids are plagued with a lack of basic information regarding species distributions, life history characteristics, and ecological and biological requirements. We assessed the influence of hydrologic factors on the occurrence of the Suwannee Moccasinshell, Medionidus walkeri, a federally threatened freshwater mussel species endemic to the Suwannee River basin in Georgia and Florida. We also assessed the influence of survey effort on detection of M. walkeri during field surveys. All current (2013-2016) mussel survey records in the Suwannee River Basin were compiled, and cumulative discharge contributed by upstream springs...
The geology of an area of 660 square miles mostly in the northeastern corner of Tennessee and small adjacent areas in Virginia and North Carolina is the subject of this report. The region lies principally in the Unaka province, with extensions northwestward into the Appalachian Valley and southwestward into the Blue Ridge province. The report combines results of surveys made between 1941 and 1953 by the U. S. Geological Survey, the Tennessee Division of Geology, and the Tennessee Valley Authority, and is published in cooperation with the Tennessee Division of Geology. Northeasternmost Tennessee is a region of widespread mineralization and was formerly important for mineral production. Iron, manganese, and bauxite...
Tags: Abingdon, Alluvium, Andesite, Argillite, Arkose, All tags...
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Cow Creek and Mill Creek Riparian Mapping and Conditions Assessment
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The Homestake Reservoir 7.5' quadrangle lies at the northwestern end of the Upper Arkansas Valley, and headwaters of the Arkansas River, and the Roaring Fork, Fryingpan, and Eagle Rivers of the Colorado River system. The quadrangle lies within tectonic provinces of the 1.4 Ga Picuris Orogeny, the late Paleozoic Ancestral Rockies, Late Cretaceous-Paleocene Laramide orogeny, Oligocene to Miocene, and Pliocene?, volcanism, and Miocene to the present Rio Grande rift extensional tectonics. In the eastern half of the quadrangle, high-angle, east-dipping, Neogene normal faults displace Proterozoic rocks, and locally Mio-Pliocene? volcanic rocks. Many quartz veins and hydrothermally altered zones are exposed along the eastern...
Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: 10Be, 26Al, 10th Mountain Division Hut, Bald Eagle Mountain, Bear Lake, Brady Lake, All tags...
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Action areas, represented as lines or polygons, for Cow or Mill Creeks. Action area locations identified through image interpretation using Google Earth imagery dated 8/27/2013 by A.G. Merrill of Stillwater Sciences in March 2015.For more information see Section 6 in: Stillwater Sciences and Aerial Information Systems. 2015. Cow Creek and Mill Creek Riparian mapping and conditions assessment. Prepared by Stillwater Sciences, Berkeley, California and Aerial Information Systems for U.S. Fish and Wildlife Service, Red Bluff, California. Financial Assistance Agreement F10AC00778.
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A series of tools (spreadsheets, a database and a document) to be used in conjunction with the SELDM simulations used in the publication: Stonewall, A.J., and Granato, G.E., 2019, Assessing potential effects of highway and urban runoff on receiving streams in total maximum daily load watersheds in Oregon using the Stochastic Empirical Loading and Dilution Model: U.S. Geological Survey Scientific Investigations Report 2019-5053, 116 p., https://doi.org/10.3133/sir20195053
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This R script can be used to analyze SELDM results. The script is specifically tailored for the SELDM simulations used in the publication: Stonewall, A.J., and Granato, G.E., 2019, Assessing potential effects of highway and urban runoff on receiving streams in total maximum daily load watersheds in Oregon using the Stochastic Empirical Loading and Dilution Model: U.S. Geological Survey Scientific Investigations Report 2019-5053, 116 p., https://doi.org/10.3133/sir20195053
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Bitterroot Range, looking northwest from Hamilton; showing gentle eastward dip of gneiss zone and deeply incised canyons of Blodgett and Mill creeks, with precipitous sides. Ravalli County, Montana. 1899. Figure 2 as a sketch in U.S. Geological Survey. Professional paper 27. 1904.
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Detail of gneiss cliff on north side of Mill Creek canyon, near mouth, cliff 1,500 feet high. Ravalli County, Montana. 1899. Plate 6-A in U.S. Geological Survey. Professional paper 27. 1904.


map background search result map search result map Loess-mantled, eroded slope of valley of east fork of Mill Creek. Rock Island County, Illinois, 1914. Cow and Mill Creeks Action Areas or Lines Cow and Mill Creeks Vegetation Mapping USGS 1:24000-scale Quadrangle for Mill Creek, IL 1996 USGS 1:24000-scale Quadrangle for Mill Creek, IL 1948 USGS 1:24000-scale Quadrangle for Mill Creek, KS 1953 USGS 1:24000-scale Quadrangle for Mill Creek, OK 1963 Brazos River Tools for use in Oregon with the Stochastic Empirical Loading Dilution Model R programming code for analyzing output from the Stochastic Empirical Loading Dilution Model Data release for Geologic Map of the Homestake Reservoir 7.5' quadrangle, Lake, Pitkin, and Eagle Counties, Colorado USGS 1:24000-scale Quadrangle for Mill Creek, IL 1948 USGS 1:24000-scale Quadrangle for Mill Creek, IL 1996 USGS 1:24000-scale Quadrangle for Mill Creek, IL 1948 USGS 1:24000-scale Quadrangle for Mill Creek, KS 1953 USGS 1:24000-scale Quadrangle for Mill Creek, OK 1963 USGS 1:24000-scale Quadrangle for Mill Creek, IL 1948 Data release for Geologic Map of the Homestake Reservoir 7.5' quadrangle, Lake, Pitkin, and Eagle Counties, Colorado Brazos River Loess-mantled, eroded slope of valley of east fork of Mill Creek. Rock Island County, Illinois, 1914. Cow and Mill Creeks Action Areas or Lines Cow and Mill Creeks Vegetation Mapping Tools for use in Oregon with the Stochastic Empirical Loading Dilution Model R programming code for analyzing output from the Stochastic Empirical Loading Dilution Model