ArcGIS Living Atlas provides foundation elevation layers and tools to support analysis and visualization across the ArcGIS system. These layers get updated quarterly with high resolution elevation data from federal agencies, open sources, and community maps program. The latest updates have just been published.
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For more information, see High resolution data updates to Living Atlas World Elevation Layers and Tools (June 2023) by @RajinderNagi
Visit the ArcGIS Living Atlas home page to learn about what's new and how to use content. See the ArcGIS Living Atlas blog for more blog articles that help you get the most out of Living Atlas.