![]() The minimum properties for a GPX file are latitude and longitude for every single point. Common software applications for the data include viewing tracks projected onto various map sources, annotating maps, and geotagging photographs based on the time they were taken. Location data (and optionally elevation, time, and other information) is stored in tags and can be interchanged between GPS devices and software. Waypoints, tracks, and routesĪ GPX file is generally used to describe waypoints, tracks, and routes. If you have one file type, but need the other, there are online converters you can easily use. If you have any doubt, you can always create or export both GPX and the KML. If you only need the tracks for Google Earth, then you can work with a KML file. For people who are looking to preserve the maximum amount of data, a GPX file will work best, as this format will contain all the information that was recorded and downloaded from your device. Which file format you use is dependent upon what you’re trying to do. KMZ files can be displayed in Google Earth Pro and loaded into some map-capable GPS units. The zipping and unzipping processes are generally performed by the application programs and are transparent to the user. A Keyhole Markup Zip, KMZ, file is a zipped (using the conventional zip protocol) compilation of a KML file and any associated files. Any map image would be on a separate file. For example, a KML file on its own could contain a set of waypoints but not an associated map image. KML files can carry global position data and references to other files (typically graphics files) in a text based format. ![]() It was originally defined by Keyhole (now Google) and is now a an Open Geospatial Consortium (OGC) standards. The KML format is a presentation language which was designed for annotating maps. The format has explicit formats for Routes, Waypoints, and Tracks as distinct data types. It is used by programs that can match GPS data to events (such as geocoding photos) and is the best choice when you need to move data between GPS devices or when you have needs other than presentation. The format is available publicly from Topographix and is extensible by using a special extension keyword in its XML. A GPX file can contain a vast array of very detailed data (such as GPS signal strength, number of visible satellites, waypoints, routes, tracks, time and speed). The GPX format is an XML data format designed for lossless storage and transfer of data for GPS devices or mobile navigation apps. What’s the difference between GPX and KML? I rarely work with KML files and there’s a few reason why. I always work with GPX files when planning or recording my hikes and GPX files are what you can download from this site. If you are new to hiking, this is something you will eventually come across when planning your next adventure. If you actively plan your hikes using web-based apps or desktop software, no doubt you’ll already know what a GPX or KML file is.
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