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Federal
Modified topobathymetric elevation data for Lake Powell 15 recent views
Department of the Interior —
This dataset provides a modified version of the previously published Lake Powell topobathymetric digital elevation model (TBDEM; Poppenga and others, 2020). The... -
Federal
Administrative Boundaries Centroids of National Park System Units NGDA
Department of the Interior —
National Park Service unit points. -
Federal
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)
Department of the Interior —
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,... -
Federal
Total mercury concentrations in dragonfly larvae from U.S. National Parks (ver. 9.0, November 2023)
Department of the Interior —
Comma-separated values (.csv) file containing data related to mercury concentrations in dragonfly samples from U.S. National Parks, Protected Places, and other... -
Federal
USGS 2017 BRalston Ground Dwelling Arthropod Composition Data v3
Department of the Interior —
These data were compiled from pitfall traps deployed at three sites, along a 25 kilometers (km) stretch of the Colorado River, immediately downstream of Glen Canyon... -
Federal
Administrative Boundaries Centroids of National Park System Units NGDA
Department of the Interior —
National Park Service unit points. -
Federal
Administrative Boundaries Centroids of National Park System Units NGDA
Department of the Interior —
National Park Service unit points. -
Federal
Administrative Boundaries Centroids of National Park System Units NGDA
Department of the Interior —
National Park Service unit points. -
Federal
Total Mercury Concentrations in Fish Muscle from the Colorado River and Bright Angel Creek, AZ, USA (2015)
Department of the Interior —
Mercury is a globally distributed pollutant that threatens human and ecosystem health. Even protected areas, such as national parks, are subjected to mercury... -
Federal
Sand classifications along the Colorado River in Grand Canyon derived from 2002, 2009, and 2013 high-resolution multispectral airborne imagery
Department of the Interior —
These data are remote sensing image-based classification maps of unvegetated river-derived sand along the Colorado River. One map is based on imagery acquired in May... -
Federal
Hydrographic and Impairment Statistics Database: GLCA
Department of the Interior —
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in... -
Federal
Rainbow trout growth data and growth covariate data from Glen Canyon, Colorado River, Arizona, 2012-2021
Department of the Interior —
These data are the primary data used to model rainbow trout growth in Glen Canyon. Fish growth data were collected from nighttime boat electrofishing field campaigns... -
Federal
Mercury Bioaccumulation in US National Parks Using Dragonfly Larvae as Biosentinels, 2009-2018
Department of the Interior —
Comma-separated values (.csv) files containing data related to a National-scale assessment of mercury bioaccumulation in the US National Parks using dragonfly larvae... -
Federal
Multibeam bathymetric data collected within Lake Powell, UT-AZ during USGS Field Activity 2017-049-FA using a dual-head Reson T20-P multibeam echosounder (32-bit GeoTIFF, UTM Zone 12N, NAD 83, NAVD 88 Vertical Datum, 2-m resolution).
Department of the Interior —
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,... -
Federal
Unpublished Digital Geologic Map of Glen Canyon National Recreation Area and Vicinity, Utah, and Arizona (NPS, GRD, GRI, GLCA, GLCA digital map) adapted from Utah Geological Survey digital data and map by Willis and Ehler (2011), and Open-File Report map by Doelling and Willis (1999)
Department of the Interior —
The Unpublished Digital Geologic Map of Glen Canyon National Recreation Area and Vicinity, Utah, Arizona is composed of GIS data layers complete with ArcMap 9.3 layer... -
Federal
Glen Canyon National Recreation Area Tract and Boundary Data
Department of the Interior —
These ESRI shape files are of National Park Service tract and boundary data that was created by the Land Resources Division. Tracts are numbered and created by the... -
Federal
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).
Department of the Interior —
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,... -
Federal
Long-term sandbar monitoring data along the Colorado River in Marble and Grand Canyons, Arizona
Department of the Interior —
This data release comprises nearly three decades of measurements of sandbar topography for monitoring sites along the Colorado River in Grand Canyon National Park and... -
Federal
Riparian vegetation data downstream of Glen Canyon Dam in Glen Canyon National Recreation Area and Grand Canyon National Park, AZ from 2014 to 2019
Department of the Interior —
These data were collected by the Grand Canyon Monitoring and Research Center (GCMRC) to support riparian vegetation monitoring along the Colorado River between Glen... -
Federal
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)
Department of the Interior —
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,...