Surveyed peak-stage elevations, coordinates, and indicator data of strandlines from large floods on the Colorado River in Grand Canyon National Park, Arizona
type: Dataset
description: These data provide a comprehensive survey of peak-stage indicators along the Colorado River corridor between river mile (RM) 0 and RM 87 (see Figure 1 in the associated USGS-SIR). In 2008, the locations of peak-stage indicators in three short reaches downstream from RM 87 were measured using a handheld GPS unit (see Appendix 1 in the associated USGS-SIR). Total-station measurements were made using an established network of survey control that references the 2011 realization of NAD83 (NAD83 (2011)) (Kaplinski and others, 2017). The measurements were projected into the State Plane Coordinate System of 1983, Arizona central zone (FIPS zone 0202). Vertical positions are provided in both NAD83 ellipsoid heights and in NAVD88 orthometric elevations modeled from GEOID12b.
issued: 2025-11-19T17:42:59.934720
modified: 20210603
spatial: Location
contact point: Organization
  fn: Ronald Griffiths
keyword: amerigeo
keyword: amerigeoss
keyword: arizona
keyword: ckan
keyword: colorado-river
keyword: driftwood-logs
keyword: elevation
keyword: environment
keyword: field-inventory-and-monitoring
keyword: field-surveys
keyword: flood-history
keyword: floods
keyword: flow-modeling
keyword: geo
keyword: geoss
keyword: gps-measurement
keyword: grand-canyon
keyword: land-surveying
keyword: national
keyword: north-america
keyword: peak-stage-indicators
keyword: pre-dam-floods
keyword: river-miles
keyword: river-reaches
keyword: spatial-coordinates
keyword: streamflow
keyword: surveying
keyword: total-station
keyword: trash
keyword: united-states
keyword: usgs-5f31ccca82cee144fb2eace8
keyword: woody-debris
theme: {geospatial}

Digital Data
type: Distribution
description: Landing page for access to the data
format: XML
issued: 2022-08-06T21:32:00.429312
modified: 2025-11-19T17:42:59.906113
access URL: https://doi.org/10.5066/P9GIQ9ZN
media type: application/http

Original Metadata
type: Distribution
description: The metadata original format
format: XML
issued: 2022-08-06T21:32:00.429306
modified: 2025-11-19T17:42:59.905308
access URL: https://data.usgs.gov/datacatalog/metadata/USGS.5f31ccca82cee144fb2eace8.xml
media type: text/xml

US Migrating
type: Agent