20250722 21403900 1.0 TRUE Grand Canyon Arizona Colorado River elevation digital elevation model ellipsoid heights topography tile cache This image service provides access to Digital Elevation Model (DEM) data for the Grand Canyon region at a 10-meter resolution. The data were obtained through the U.S. Geological Survey's National Elevation Dataset (NED) in the form of many individual tiles. These tiles were then mosaicked together and produced as a topography image service to be used for as elevation source for online analysis. Publishing to ArcGIS Enterprise then adding to ArcGIS Online grandcanyon_10m_dem_tiles_service