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Filters: Tags: Alluvium (X) > Types: Map Service (X)

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Raster showing change in water-table altitude between Fall of 2002 and Fall of 2015 in the alluvium in the Lower Arkansas River Valley, Southeast Colorado. Hereafter "fall" is defined as June 1 to November 30. All interpolation and geoprocessing was done using ArcGIS Desktop v10 (Environmental Systems Research Institute, 2011).
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Raster dataset showing saturated thickness (in feet) of the alluvium in the Lower Arkansas River Valley, Southeast Colorado, June 1 - November 30, 2008 (hereafter defined as "fall"). Saturated thickness values based on water levels measured in the study area and median lake level at John Martin Reservoir during this time period. Surface interpolations for water-table altitude were done using Inverse Distance Weighting using coordinate and altitude data from "Wells and water-level altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring and Fall 2002, 2008, and 2015" (see cross reference section in metadata), and surface interpolation of bedrock was done using Topo to Raster using elevation...
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Raster showing change in water-table altitude between Fall of 2002 and Fall of 2008 in the alluvium in the Lower Arkansas River Valley, Southeast Colorado. Hereafter "fall" is defined as June 1 to November 30. All interpolation and geoprocessing was done using ArcGIS Desktop v10 (Environmental Systems Research Institute, 2011).
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Raster dataset showing saturated thickness (in feet) of the alluvium in the Lower Arkansas River Valley, Southeast Colorado, January 1 - May 31, 2015 and December 1 - 31, 2015 (hereafter defined as "spring"). Saturated thickness values based on water levels measured in the study area and median lake level at John Martin Reservoir during this time period. Surface interpolations for water-table altitude were done using Inverse Distance Weighting using coordinate and altitude data from "Wells and water-level altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring and Fall 2002, 2008, and 2015" (see cross reference section in metadata), and surface interpolation of bedrock was done using...
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This raster dataset shows the thickness of the alluvium in the Lower Arkansas River Valley, Southeast Colorado. The bottom boundary defined by bedrock (Hurr and Moore, 1972; Nelson and others, 1989a, b, c) and top boundary defined by land surface from U.S. Geological Survey National Elevation Dataset (2016). All interpolation and geoprocessing was completed in ArcGIS Desktop v10 (Environmental Systems Research Institute, 2011).
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This data release is a geochemical data set from the reanalysis of 23 rock and 85 sediment samples collected between 1966 and 1970 by the U.S. Geological Survey (USGS) for a series of studies investigating the mineral resources of the Idaho Primitive Area (Cater et al., 1973). The samples are from the upper Middle Fork Salmon River and the South Fork Salmon River, including the tributaries of East Fork of the South Fork and Porphyry Creek. The overall objective of this study is to characterize the regional impact of legacy mining for the Frank Church - River of No Return Wilderness Area. In 1980 the U. S. Congress passed the Central Idaho Wilderness Act which combined the Idaho Primitive Area, the Salmon Rivers...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Automatic Creek, Beansnapper Creek, Bear Creek, Big Chief Creek, Big Cottonwood Creek, All tags...
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Raster dataset showing saturated thickness (in feet) of the alluvium in the Lower Arkansas River Valley, Southeast Colorado, June 1 - November 30, 2015 (hereafter defined as "fall"). Saturated thickness values based on water levels measured in the study area and median lake level at John Martin Reservoir during this time period. Surface interpolations for water-table altitude were done using Inverse Distance Weighting using coordinate and altitude data from "Wells and water-level altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring and Fall 2002, 2008, and 2015" (see cross reference section in metadata), and surface interpolation of bedrock was done using Topo to Raster using elevation...
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Raster showing change in water-table altitude between Spring of 2008 and Spring of 2015 in the alluvium in the Lower Arkansas River Valley, Southeast Colorado. Hereafter "spring" is defined as the periods of January 1 to May 31, and December 1 to December 31. All interpolation and geoprocessing was done using ArcGIS Desktop v10 (Environmental Systems Research Institute, 2011).
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Raster dataset showing saturated thickness (in feet) of the alluvium in the Lower Arkansas River Valley, Southeast Colorado, January 1 - May 31, 2008 and December 1 - 31, 2008 (hereafter defined as "spring"). Saturated thickness values based on water levels measured in the study area and median lake level at John Martin Reservoir during this time period. Surface interpolations for water-table altitude were done using Inverse Distance Weighting using coordinate and altitude data from "Wells and water-level altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring and Fall 2002, 2008, and 2015" (see cross reference section in metadata), and surface interpolation of bedrock was done using...
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Boundary of the alluvium in the Lower Arkansas River Valley, Southeast Colorado. Boundary defined by extent of available bedrock information and geologic maps. Also includes approximate shoreline of John Martin Reservoir in Bent County, Colorado. Scale of maps used for digitization was 1:62,500. All digitization and geoprocessing was done using ArcGIS Desktop v10 (Environmental Systems Research Institute, 2011)
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On May 25, 2014, a rain-on-snow induced rock avalanche occurred in the West Salt Creek Valley on the northern flank of Grand Mesa in western Colorado. The avalanche traveled 4.6 km down the confined valley, killing 3 people. The avalanche was rare for the contiguous U.S. because of its large size (54.5 Mm3) and long travel distance. To understand the avalanche failure sequence, mechanisms, and mobility, we mapped landslide structures, geology, and ponds at 1:1000-scale. We used high-resolution, Unmanned Aircraft System (UAS) imagery from July 2014 as a base for our field mapping. Here we present the map data and UAS imagery. The data accompany an interpretive paper published in the journal Geosphere. The full citation...
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Raster dataset showing saturated thickness (in feet) of the alluvium in the Lower Arkansas River Valley, Southeast Colorado, June 1 - November 30, 2002 (hereafter defined as "fall"). Saturated thickness values based on water levels measured in the study area and median lake level at John Martin Reservoir during this time period. Surface interpolations for water-table altitude were done using Inverse Distance Weighting using coordinate and altitude data from "Wells and water-level altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring and Fall 2002, 2008, and 2015" (see cross reference section in metadata), and surface interpolation of bedrock was done using Topo to Raster using elevation...
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This data release presents geologic map data for the surficial geology of the Aztec 1-degree by 2-degree quadrangle. The map area lies within two physiographic provinces of Fenneman (1928): the Southern Rocky Mountains province, and the Colorado Plateau province, Navajo section. Geologic mapping is mostly compiled from published geologic map data sources ranging from 1:24,000 to 1:250,000 scale, with limited new interpretive contributions. Gaps in map compilation are related to a lack of published geologic mapping at the time of compilation, and not necessarily a lack of surficial deposits. Much of the geology incorporated from published geologic maps is adjusted based on digital elevation model and natural-color...
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Raster dataset showing saturated thickness (in feet) of the alluvium in the Lower Arkansas River Valley, Southeast Colorado, January 1 - May 31, 2002 and December 1 - 31, 2002 (hereafter defined as "spring"). Saturated thickness values based on water levels measured in the study area and median lake level at John Martin Reservoir during this time period. Surface interpolations for water-table altitude were done using Inverse Distance Weighting using coordinate and altitude data from "Wells and water-level altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring and Fall 2002, 2008, and 2015" (see cross reference section in metadata), and surface interpolation of bedrock was done using...
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Raster showing change in water-table altitude between Spring of 2002 and Spring of 2015 in the alluvium in the Lower Arkansas River Valley, Southeast Colorado. Hereafter "spring" is defined as the periods of January 1 to May 31, and December 1 to December 31. All interpolation and geoprocessing was done using ArcGIS Desktop v10 (Environmental Systems Research Institute, 2011).
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Points representing locations of wells in which water levels were measured, and values of water-level altitudes above the National Geodetic Vertical Datum of 1929 for June 1 to November 30 (hereafter defined as "fall") and December 1 to May 31 (hereafter defined as "spring"), 2002, 2008, and 2015 in the Lower Arkansas River Valley, Southeastern Colorado. Water-level values, John Martin Reservoir lake levels, and land surface altitudes at monitoring wells were gathered from the U.S. Geological Survey National Water Information System (NWIS) and the U.S. Army Corps of Engineers. All geoprocessing was done using ArcGIS Desktop v10 (Environmental Systems Research Institute, 2011).
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Raster showing change in water-table altitude between Fall of 2008 and Fall of 2015 in the alluvium in the Lower Arkansas River Valley, Southeast Colorado. Hereafter "fall" is defined as June 1 to November 30. All interpolation and geoprocessing was done using ArcGIS Desktop v10 (Environmental Systems Research Institute, 2011).
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Raster showing change in water-table altitude between Spring of 2002 and Spring of 2008 in the alluvium in the Lower Arkansas River Valley, Southeast Colorado. Hereafter "spring" is defined as the periods of January 1 to May 31, and December 1 to December 31. All interpolation and geoprocessing was done using ArcGIS Desktop v10 (Environmental Systems Research Institute, 2011).
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This digital data release contains geospatial geologic data compiled for the Lamar 250k quadrangle, a region in eastern Colorado and western Kansas, which is predominantly covered by Quaternary deposits that overlay Cretaceous bedrock. Geologic data, compiled from published sources, include the location and characteristics of geologic contacts and faults, mapped geologic polygons, and ammonite fossils. The geologic database includes spatial feature classes that collectively contain the geologic information that are presented in the previously published map plate. The spatial data are accompanied by non-spatial tables that describe the sources of geologic information, a description of geologic map units, a glossary...
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This data release presents geologic map data for the surficial geology of the Durango 1-degree by 2-degree quadrangle and adjacent areas along the northern boundary of the quadrangle. The map area lies within two physiographic provinces of Fenneman (1928): the Southern Rocky Mountains province, and the Colorado Plateau province, Navajo section. Geologic mapping is mostly compiled from published geologic map data sources ranging from 1:24,000 to 1:250,000 scale, with limited new interpretive contributions. Gaps in map compilation are related to a lack of published geologic mapping, and not necessarily a lack of surficial deposits. Much of the geology incorporated from published geologic maps is adjusted based on...
    map background search result map search result map Map data and Unmanned Aircraft System imagery from the May 25, 2014 West Salt Creek rock avalanche in western Colorado Thickness of Alluvium in the Lower Arkansas River Valley, Southeastern Colorado Boundary of the Alluvium in the Lower Arkansas River Valley, Southeast Colorado Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Fall 2002 Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Fall 2008 Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Fall 2015 Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Spring 2002 Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Spring 2008 Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Spring 2015 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Fall 2002 to Fall 2008 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Fall 2008 to Fall 2015 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Fall 2002 to Fall 2015 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring 2002 to Spring 2008 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring 2002 to Spring 2015 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring 2008 to Spring 2015 Wells and water-level altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring and Fall 2002, 2008, and 2015 Geochemical reanalysis of rock and sediment samples from the Middle Fork and South Fork of the Salmon River collected in the mid-1960s through the early 1970s as part of the Idaho Primitive Area studies Digital database of the previously published Geologic Map of the Lamar Quadrangle, Colorado and Kansas Surficial geologic map database of the Durango 1-degree by 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map Surficial geologic map database of the Aztec 1-degree by 2-degree quadrangle, northern New Mexico and southern Colorado: Contributions to the National Geologic Map Geochemical reanalysis of rock and sediment samples from the Middle Fork and South Fork of the Salmon River collected in the mid-1960s through the early 1970s as part of the Idaho Primitive Area studies Wells and water-level altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring and Fall 2002, 2008, and 2015 Boundary of the Alluvium in the Lower Arkansas River Valley, Southeast Colorado Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Fall 2002 Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Fall 2008 Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Fall 2015 Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Spring 2002 Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Spring 2008 Saturated Thickness in the Alluvium of the Lower Arkansas Valley, Southeast Colorado, Spring 2015 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Fall 2002 to Fall 2008 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Fall 2008 to Fall 2015 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Fall 2002 to Fall 2015 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring 2002 to Spring 2008 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring 2002 to Spring 2015 Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring 2008 to Spring 2015 Thickness of Alluvium in the Lower Arkansas River Valley, Southeastern Colorado Surficial geologic map database of the Aztec 1-degree by 2-degree quadrangle, northern New Mexico and southern Colorado: Contributions to the National Geologic Map Digital database of the previously published Geologic Map of the Lamar Quadrangle, Colorado and Kansas Surficial geologic map database of the Durango 1-degree by 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map