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Spatial Extent of Data

USGS Data Source

USGS Thesaurus Keywords

aquatic ecosystems, field inventory and monitoring, sedimentation, terrestrial ecosystems, field experiments, geomorphology, erosion, power generation water use, recreation, river ecosystems, topography, hydrology

ISO 19115 Topic Category

geoscientificInformation, inlandWaters, elevation

Other Subject Keywords

hydropower, rebuild sandbars, dams, sandbars, high-flow experiments, measurements, sandbar topography, rivers, water resources, deposition, dam operations, campsites, recreational campsites, size and condition of the sandbars, monitoring

Place Keywords

Grand Canyon National Park, Glen Canyon National Recreation Area, Colorado River, Glen Canyon Dam, Arizona

Long-term sandbar monitoring data along the Colorado River in Marble and Grand Canyons, Arizona (ver. 2.0, March 2026)

This data release comprises over three decades of measurements of sandbar topography for monitoring sites along the Colorado River in Grand Canyon National Park and Glen Canyon National Recreation Area. The data were collected to monitor the effects of the operations of Glen Canyon Dam on sandbars, which are also recreational campsites. The data were collected by the US Geological Survey Grand Canyon Monitoring and Research Center in cooperation with Northern Arizona University. Funding for data collection, processing, and reporting has been provided by the Glen Canyon Dam Adaptive Management Program administered by the US Department of the Interior Bureau of Reclamation.

Get Data and Metadata
Author(s) Paul E Grams orcid, Joseph Jr. Hazel orcid, Matthew A Kaplinski orcid, Robert P. Ross orcid, Daniel Hamill orcid, James W Hensleigh orcid, Thomas Gushue orcid
Publication Date 2020-12-16
Beginning Date of Data 1990-09-28
Ending Date of Data 2025-10-28
Data Contact
Katherine A Chapman
DOI https://doi.org/10.5066/P93F8JJK
Citation Grams, P.E., Hazel, J.J., Kaplinski, M.A., Ross, R.P., Hamill, D., Hensleigh, J.W., and Gushue, T., 2020, Long-term sandbar monitoring data along the Colorado River in Marble and Grand Canyons, Arizona (ver. 2.0, March 2026): U.S. Geological Survey data release, https://doi.org/10.5066/P93F8JJK.
Metadata Contact
Katherine A Chapman
Metadata Date 2026-03-25
Related Publication
Citations of these data

Loading https://doi.org/10.1002/rra.3589

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License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: ScienceBase
Harvest Date: 2026-03-26T04:59:15.112Z