Grand Canyon river alert messages on Garmin and SPOT satellite communication devices

Grand Canyon river alert messages on Garmin and SPOT satellite communication devices that are subscribed to the Grand Canyon river alert system (GCRAS). For more information, see: https://grandcanyon.usgs.gov/gisapps/debrisflowflashfloodrisk/ and https://www.nps.gov/grca/planyourvisit/colorado-river-emergency-alerts.htm. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.