UPDATE: I’ve posted a more comprehensive set of resources for free topo maps for Garmin GPS receivers.
The list of states for which there are free high-resolution, Garmin-compatible topo maps continues to expand. The following are currently available:
- Colorado (sample image above left)
- New Mexico
- Wyoming (sample image above right)
These maps should work on any nuvi or mapping handheld made by Garmin. Installation instructions are given on each of the above pages.
Many thanks to dfg and Dan AKA Oz for all their efforts making these maps and for releasing them to the public. If you use these maps, please consider making a donation to them, which you can do from any of the maps’ download pages.