U.S. flag

An official website of the United States government

icon-dot-gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

icon-https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Spatial Extent of Data

USGS Data Source

USGS Thesaurus Keywords

adaptive management, digital elevation models, field inventory and monitoring, remote sensing

ISO 19115 Topic Category

imageryBaseMapsEarthCover

Other Subject Keywords

change detection, monitoring, digital surface model, airborne imagery, image classification, management, data release

Place Keywords

Havasu Creek, Paria River, Colorado River, Glen Canyon National Recreation Area, Separation Canyon, Diamond Creek, Marble Canyon, Tapeats Creek, Glen Canyon Dam, Lees Ferry, Arizona, Glen Canyon, Kanab Creek, Bright Angel Creek, Shinumo Creek, Grand Canyon National Park, Little Colorado River, Grand Canyon

Digital elevation model (DEM) data for the Colorado River corridor in Grand Canyon National Park and Glen Canyon National Recreation Area (2021)

The 2021 Digital Elevation Model (DEM) dataset consists of single band rasters at 1-meter pixel resolution that were generated to orthorectify four band ortho imagery acquisition, and to support development of additional GIS products. Each pixel represents the elevation of the ground surface at that point expressed as NAD83(2011) ellipsoid height. A Digital Surface Model (DSM) was generated by automatic correlation of stereoscopic imagery collected from approximately 8,000 ft to 11,000 ft above mean sea level at 20-cm resolution with one Leica ADS100 digital push-broom multi-spectral sensor on each of two aircraft May 29, 2021 – June 4, 2021. The DEM was generated by removing the aboveground features from the DSM by filtering process. Data were collected during a period of low steady river flow of approximately 8,000 cubic feet per second released from Glen Canyon Dam. The data are for the segment of the Colorado River corridor from Glen Canyon Dam downstream to Pearce Ferry, AZ.

Get Data and Metadata
Author(s) Joel B Sankey orcid, Nathaniel D Bransky, Keith Kohl orcid, Thomas Gushue orcid, Ashton F Bedford orcid, Laura E Durning orcid
Publication Date 2025-01-23
Beginning Date of Data 2021
Ending Date of Data 2021
Data Contact
Joel B Sankey
DOI https://doi.org/10.5066/P93Y4FMJ
Citation Sankey, J.B., Bransky, N.D., Kohl, K., Gushue, T., Bedford, A.F., and Durning, L.E., 2025, Digital elevation model (DEM) data for the Colorado River corridor in Grand Canyon National Park and Glen Canyon National Recreation Area (2021): U.S. Geological Survey data release, https://doi.org/10.5066/P93Y4FMJ.
Metadata Contact
Joel B Sankey
Metadata Date 2025-01-23
Related Publication
Citations of these data

Loading https://doi.org/XXXX
Access public
License http://www.usa.gov/publicdomain/label/1.0/
Loading...
Harvest Source: ScienceBase
Harvest Date: 2025-01-24T05:04:46.700Z