The OpenMapChest maps work with the following Garmin devices:
Other Garmin devices with an SD Card slot should work but I haven't tested them personally. Let me know if the maps work on a device not listed here.
The maps are created using map data provided by the OpenStreetMap project, a user-editable map of the world. Like all maps, OpenMapChest maps will have some errors. The advantage of using an OpenStreetMap based map is that you can fix any problems you find directly in OpenStreetMap and be using your fixes within a week. That's not possible with Garmin's official maps.
Want to make a change to the map data? Check out the OpenStreetMap beginner's guide to get started.
The maps on this site are updated weekly so that everyone can benefit from the fixes and updates in the OpenStreetMap data without too much delay.
The map build script is usually started Friday night / Saturday morning and takes about 4 days to complete. You can expect an updated version of your favorite map to appear on the site sometime between Saturday and Tuesday.
The maps are created using the mkgmap map compiler. You can create your own maps by following the mkgmap map creation guide.
There are no limitations on these maps. You can install them on as many devices as you like. You can share them with as many people as you want.
I just ask that you give me credit by linking to this site or by mentioning OpenMapChest to the people you share the maps with. Thanks. 🙂
The US maps are enhanced with the TIGER address data from the US Census Bureau. This data is released annually and I try to update to the latest version of this data as soon as it's released.
You sure can! 🚀
Instructions and the custom style file can be found in the OpenMapChest map build guide.
I kindly ask you not to label any maps you make as coming from OpenMapChest as this name is reserved for the official maps of this site.
Hi 👋, I'm Ben Konrath.
I run OpenMapChest as a hobby. I love maps and created OpenMapChest to share the maps I make with other people. I hope you find them useful.
I spend my time on this project improving the maps and the map-making process, helping users who encounter problems, and improving the OpenMapChest website.
As well as OpenMapChest, I also work on Brandbook.io, a commercial service for hosting online brand manuals and guidelines. Feel free to check it out!
