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The 1966 polygons included in this data release represent the main body portion of the 37 named glaciers of Glacier National Park (GNP) and 2 named glaciers on the U.S. Forest Service’s Flathead National Forest land. This is a subset of the original mapping effort derived from 1:24000 scale mapping of named glaciers and permanent snowfields within Glacier National Park, Montana which were digitized by Richard Menicke (Glacier National Park) and Carl Key (U.S. Geological Survey) in 1993. These data are based on USGS 7.5 minute quadrangle mapping published from 1966 through 1968 which were the result of the earliest park-wide aerial surveys of snow and ice features in GNP. Examination of the aerial photographs shows...
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National Park Service administrative unit boundaries for those National Parks inside the Greater Yellowstone Ecosystem. This dataset constitutes a subset of National Park System boundary features extracted from the 9/30/2016 - National Geospatial Data Asset (NGDA) NPS National Parks Dataset.
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High-resolution geophysical mapping of Lake Powell in the Glen Canyon National Recreation Area in Utah and Arizona was conducted between October 8 and November 15, 2017, as part of a collaborative effort between the U.S. Geological Survey and the Bureau of Reclamation to provide high-quality data needed to reassess the area-capacity tables for the Lake Powell reservoir. Seismic data collected during this survey can help to define the rates of deposition within the San Juan and Colorado Rivers, which are the main inflows to Lake Powell. These new data are intended to improve water budget management decisions that affect the natural and recreational resources of the reservoir. Multibeam echosounder bathymetry and...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Antelope Canyon, BOR, Bullfrog, Bullfrog Bay, Bureau of Reclamation, All tags...
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High-resolution geophysical mapping of Lake Powell in the Glen Canyon National Recreation Area in Utah and Arizona was conducted between October 8 and November 15, 2017, as part of a collaborative effort between the U.S. Geological Survey and the Bureau of Reclamation to provide high-quality data needed to reassess the area-capacity tables for the Lake Powell reservoir. Seismic data collected during this survey can help to define the rates of deposition within the San Juan and Colorado Rivers, which are the main inflows to Lake Powell. These new data are intended to improve water budget management decisions that affect the natural and recreational resources of the reservoir. Multibeam echosounder bathymetry and...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: AML Minos X, Antelope Canyon, BOR, Bullfrog, Bullfrog Bay, All tags...
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These polygon features represent digitization of the glacier margins for the 37 named glaciers of Glacier National Park (GNP) and the 2 glaciers along the border of GNP derived from aerial images acquired on September 11, 12, 14, 15, 1998. The polygons represent only the main body portion of the glacier as they appeared in the 1998 imagery. Disconnected patches are not included as this dataset represents only the main body features. Polygons were digitized from orthorectified aerial images with initial digitization completed in 2001 by Michelle Manly, University of North Dakota graduate student. This set of polygons represents a thorough review with revisions to the initial dataset based on local knowledge and improved...
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High-resolution geophysical mapping of Lake Powell in the Glen Canyon National Recreation Area in Utah and Arizona was conducted between October 8 and November 15, 2017, as part of a collaborative effort between the U.S. Geological Survey and the Bureau of Reclamation to provide high-quality data needed to reassess the area-capacity tables for the Lake Powell reservoir. Seismic data collected during this survey can help to define the rates of deposition within the San Juan and Colorado Rivers, which are the main inflows to Lake Powell. These new data are intended to improve water budget management decisions that affect the natural and recreational resources of the reservoir. Multibeam echosounder bathymetry and...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Antelope Canyon, BOR, Bullfrog, Bullfrog Bay, Bureau of Reclamation, All tags...
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High-resolution geophysical mapping of Lake Powell in the Glen Canyon National Recreation Area in Utah and Arizona was conducted between October 8 and November 15, 2017, as part of a collaborative effort between the U.S. Geological Survey and the Bureau of Reclamation to provide high-quality data needed to reassess the area-capacity tables for the Lake Powell reservoir. Seismic data collected during this survey can help to define the rates of deposition within the San Juan and Colorado Rivers, which are the main inflows to Lake Powell. These new data are intended to improve water budget management decisions that affect the natural and recreational resources of the reservoir. Multibeam echosounder bathymetry and...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Antelope Canyon, BOR, Bullfrog, Bullfrog Bay, Bureau of Reclamation, All tags...


    map background search result map search result map Boundary of Yellowstone National Park National Park Administrative Units in the GYE 1966_Glacier margins derived from USGS 1966 topographic maps for the named glaciers of Glacier National Park, MT and environs 1998_Glacier margins derived from 1998 aerial imagery for the named glaciers of Glacier National Park, MT and environs Multibeam Echosounder, Reson T-20P tracklines, collected within Lake Powell UT-AZ during USGS Field Activity 2017-049-FA (Esri polyline shapefile, GCS WGS 84) Seismic Reflection, EdgeTech SB-424 chirp tracklines collected within Lake Powell, UT-AZ during USGS field activity 2017-049-FA, (Esri polyline shapefile, GCS WGS 84) Seismic Reflection, EdgeTech SB-424 chirp shot points collected within Lake Powell, UT-AZ during USGS field activity 2017-049-FA (CSV text and Esri point shapefile, GCS WGS 84) Sound Velocity Profiles, AML Minos X sound velocity profile data, collected during USGS field activity 2017-049-FA within Lake Powell, UT-AZ (PNG images, SVP text, and Esri point shapefile, GCS WGS 84). Seismic Reflection, EdgeTech SB-424 chirp shot points collected within Lake Powell, UT-AZ during USGS field activity 2017-049-FA (CSV text and Esri point shapefile, GCS WGS 84) Seismic Reflection, EdgeTech SB-424 chirp tracklines collected within Lake Powell, UT-AZ during USGS field activity 2017-049-FA, (Esri polyline shapefile, GCS WGS 84) 1998_Glacier margins derived from 1998 aerial imagery for the named glaciers of Glacier National Park, MT and environs 1966_Glacier margins derived from USGS 1966 topographic maps for the named glaciers of Glacier National Park, MT and environs Sound Velocity Profiles, AML Minos X sound velocity profile data, collected during USGS field activity 2017-049-FA within Lake Powell, UT-AZ (PNG images, SVP text, and Esri point shapefile, GCS WGS 84). Multibeam Echosounder, Reson T-20P tracklines, collected within Lake Powell UT-AZ during USGS Field Activity 2017-049-FA (Esri polyline shapefile, GCS WGS 84) Boundary of Yellowstone National Park National Park Administrative Units in the GYE