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Map Links
The maps URL scheme is used to show geographical locations and to generate driving directions between two points. If your app includes address or location information, you can use map links to open that information in the Maps app in iOS or macOS. Unlike some schemes, map URLs do not start with a "maps" scheme identifier.
About Apple URL Schemes
About Apple URL Schemes. This document describes several URL schemes that are supported by system apps on iOS, macOS, and watchOS 2 and later. Native iOS apps and web apps running in Safari on any platform can use these schemes to integrate with system apps and provide a more seamless experience for the user.