Can data from The National Map be used in mobile applications?
Data from The National Map (TNM) can be used in mobile applications through the usage of MOBAC, the Mobile Atlas Creator. MOBAC is a desktop (not mobile) application that will build local map caches of USGS TNM data for handheld devices, such as mobile Android phones, iPhones (iOS), and GPS. It works with the AlpineQuest, OruxMaps, and TerraGo Edge applications for Android, the Galileo Offline Maps and TerraGo Edge applications for iPhone, and custom maps for Gaia GPS.
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More information: Using TNM Services to enable your web and mobile mapping efforts