As our Garmin Landing Page lays out, there are two types of Garmin basemaps on Trailforks:
1. Integrated Trailforks Data Basemap: Trailforks partnered with Garmin to integrate Trailforks data into a custom MTB map, & this basemap features on select Garmin Edge devices. The Garmin Edge 530, Edge 830, and Edge 1030 Plus offer the integrated Trailforks features. This basemap includes Trailforks MTB trails, some points of interest (POIs) like parking lots, trail features, and riding area markers at lower zoom levels. This map is also routable using the Edge's built-in routing capabilities.
There is no set schedule of when this basemap is updated. Trailforks sends Garmin a data dump two to three times a year; from there, Garmin releases the map updated through Garmin Express software.
2. Trailforks Custom Garmin Basemap: Trailforks also produces our own custom Garmin basemap, which can be downloaded on a per-state or country basis. This map includes Trailforks trails, POIs, and OpenStreetMap roads. It is NOT routable. This basemap should work on any Garmin product that supports custom basemaps. We also offer a trails-only basemap, which highlights only trails and can be viewed on top of another basemap.
We update these maps a few times a year, and we hope to soon create a more automated pipeline to have these maps update on a monthly basis.