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This map layer is a grid map of 2001 average vegetation growth for Alaska and the conterminous United States. The nominal spatial resolution is 1 kilometer and the map layer is based on 1-kilometer AVHRR data. The data were compiled by staff at the USGS Center for Earth Resources Observation and Science.
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This data set portrays election results, by counties for 49 States and by election districts for Alaska, for the 2004 Presidential general election. Reported for each county are the popular vote count for the Democratic Party candidate, the Republican Party candidate, and all other votes. Also reported are the percentage of the vote cast for each party’s candidate, based on the total number of valid votes cast. Over votes (ballots which contained votes for more than one candidate) and under votes (ballots which contained votes for no candidate) are not included in the total number of votes reported. For details particular to each State, see the Process Steps.
Categories: Web Site; Tags: 2004 Presidential Election, Alabama, Alaska, Arizona, Arkansas, All tags...
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This map layer consists of federally owned or administered lands of the United States, Puerto Rico, and the U.S. Virgin Islands. Only areas of 640 acres or more are included. There may be private inholdings within the boundaries of Federal lands in this map layer. This is a revised version of the December 2005 map layer.
Categories: Web Site; Tags: Agricultural Research Service, Air Force, Alabama, Alaska, Arizona, All tags...
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This map layer shows Omernik's Level III ecoregions, derived from a 1:7,500,000 map created by J.M. Omernik in 1987 and from refinements of Omernik's framework that were made for other projects. Ecoregions describe areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. Omernik's ecoregions are based on the premise that a hierarchy of ecological regions can be identified through the analysis of the patterns and the composition of both living and nonliving phenomena, such as geology, physiography, vegetation, climate, soils, land use, wildlife, and hydrology, that affect or reflect differences in ecosystem quality and integrity. All the characteristics are considered...
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This map layer is a grid map of 1996 average vegetation growth for Alaska and the conterminous United States. The nominal spatial resolution is 1 kilometer and the map layer is based on 1-kilometer AVHRR data. The data were compiled by staff at the USGS Center for Earth Resources Observation and Science.
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This data set includes U.S. Census Bureau 1990 population information for the United States, presented by county. Included are total population counts; various statistics on race, ethnic, and gender distributions; income statistics; urban and rural statistics, and median age. This is a revised version of the July, 2004, data set, with data for urban and rural statistics added.
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Aeromagnetic data were collected along flight lines by instruments in an aircraft that recorded magnetic-field values and locations. This dataset presents latitude, longitude, altitude, and magnetic-field values.
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Aeromagnetic data were collected along flight lines by instruments in an aircraft that recorded magnetic-field values and locations. This dataset presents latitude, longitude, altitude, and magnetic-field values.
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This is a coverage of the Colorado Plateau coal assessment study area. The study area outline was drawn on the county lines that most closely outline the coal-bearing rocks in the Colorado Plateau Region. The county outlines originate from a national coverage for which lines were extracted from U.S. Census 1990 TIGER/line files using an AML program written by Nebert, D., and Negri, M., USGS-Water Resources Division (WRD), running on two Data General 6220 servers.
Categories: Web Site; Tags: 04001 = Apache, 04005 = Coconino, 04007 = Gila, 04009 = Graham, 04011 = Greenlee, All tags...
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This is an Arc/Info coverage showing the general elevation of the top of the Herrin (No. 6) coal in Illinois. These 100-foot isolines were contoured by Earthvision software using more than 22,000 data points. The data was not contoured using fault lines for control and no manual adjustments were made to the contours to reflect the presence of known faults. Limited data were available in the north central and central portions of the state. This data set is intended for use at a scale of 1:750,000.
Categories: Web Site; Tags: 17005 = Bond, 17011 = Bureau, 17017 = Cass, 17019 = Champaign, 17021 = Christian, All tags...
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Outlines of areas mined for the Springfield coal in Illinois as of January 1, 1996. This information was extracted from detailed coal mine data stored in the ISGS Coal Section library database. Lines delineate the approximate outer boundary of individual mines (if known) or general mined areas. Interior mine boundaries such as pillars or small blocks of unmined coal are commonly not depicted. Outlines have been compiled from a variety of sources. Outlines of areas mined before 1987 are commonly from source maps at scales of 1:62,500 or smaller. Outlines of areas mined since 1987 are commonly digitized at scales ranging from 1:4800 to 1:12,000. Mines whose extent is not known or which only mined a few acres are not...
Categories: Web Site; Tags: 17005 = Bond, 17011 = Bureau, 17017 = Cass, 17019 = Champaign, 17021 = Christian, All tags...
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This image contains a representation of the topographic relief in the area of the Green River Basin area. This area is a part of the National Coal Resource Assessment of the Northern Rocky Mountain and Great Plains Fort Union Coal Resources Assessment Area. This area can be shown in relation to other relevant themes of this area.
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This geologic map is a product of a cooperative project between the U.S. Geological Survey and the U.S. National Park Service to provide geologic information about this part of Canyonlands National Park, Utah. This digital map database contains bedrock data from previously published data that has been modified by the author. New mapping of the surficial deposits represents the general distribution of surficial deposits of the Druid Arch and The Loop 7.5-minute quadrangles.
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Probabilistic seismic hazard maps were prepared for Alaska portraying peak horizontal ground acceleration and horizontal spectral response acceleration for 0.2, 0.3, and 1.0 second periods with probabilities of exceedance of 10% in 50 years and 2% in 50 years. This particular data set is for peak horizontal acceleration with a 10% probability of exceedance in 50 years. All of the maps were prepared by combining hazard derived from spatially-smoothed historic seismicity with hazard from fault-specific sources. The acceleration values contoured are the random horizontal component. The reference site condition is firm rock, defined as having an average shear-wave velocity of 760 m/sec in the top 30 meters corresponding...
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The Satellite View of Hawaii map layer is a 200-meter-resolution simulated-natural-color image of Hawaii. Vegetation is generally green, with forests in darker green and grasslands or pasture in lighter green. Areas of volcanic rock and soil are represented by shades of brown. The image was produced by combining Landsat Thematic Mapper(TM) imagery from the Landsat 4 and Landsat 5 satellites.
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The color Hawaii shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain of Hawaii at a resolution of 200 meters. The NED is a raster product assembled by the U.S. Geological Survey, designed to provide national elevation data in a seamless form with a consistent datum, elevation unit, and projection. Data corrections made in the NED assembly process minimize artifacts, permit edge matching, and fill sliver areas of missing data.
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The Fisheries and Wildlife Resources Group combines the expertise of professional fisheries scientists, wildlife biologists, environmental regulatory specialists, and environmental chemists, to conduct a wide variety of multidisciplinary environmental field and laboratory studies concerning aquatic and terrestrial habitats, wildlife, water quality, and environmental impacts.


map background search result map search result map Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: Instrumental earthquake locations Magnetic Field - Inclination Component for the Epoch 1995.0 Average Vegetation Growth 1996 Elevation of the Herrin Coal in Illinois Average Vegetation Growth 2001 Satellite View of Hawaii The Colorado Plateau coal assessment study area Mined areas of the Springfield Coal in Illinois Surficial Geologic Map of The Loop and Druid Arch Quadrangles, Canyonlands National Park, Utah 2004 Presidential General Election, County Results Color Hawaii Shaded Relief – 200-Meter Resolution Omernik's Level III Ecoregions of the Continental United States Relief image of the Green River Basin Aeromagnetic data for Tioga Lake, California Coal-Bearing Regions and Structural Sedimentary Basins of China and Adjacent Seas: Coal field locations Aeromagnetic data for Tobacco Roots, Montana U.S. Census Database, 1990 Seismic-Hazard Maps for Alaska and the Aleutian Islands: PGA050 Federal Lands of the United States Aeromagnetic data for Tioga Lake, California Surficial Geologic Map of The Loop and Druid Arch Quadrangles, Canyonlands National Park, Utah Aeromagnetic data for Tobacco Roots, Montana Relief image of the Green River Basin Mined areas of the Springfield Coal in Illinois Elevation of the Herrin Coal in Illinois The Colorado Plateau coal assessment study area Satellite View of Hawaii Color Hawaii Shaded Relief – 200-Meter Resolution Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: Instrumental earthquake locations Coal-Bearing Regions and Structural Sedimentary Basins of China and Adjacent Seas: Coal field locations Seismic-Hazard Maps for Alaska and the Aleutian Islands: PGA050 Omernik's Level III Ecoregions of the Continental United States Average Vegetation Growth 1996 Average Vegetation Growth 2001 2004 Presidential General Election, County Results U.S. Census Database, 1990 Federal Lands of the United States Magnetic Field - Inclination Component for the Epoch 1995.0