Topographic Map Coverage for the Overlander

The Overlander® GPS navigator comes preloaded with topographic maps of North and South America. It also comes with OpenStreet mapping for South America preloaded. This mapping is through the Garmin Explore™ App.

How to Access Topo Maps on the Overlander:

1. Sign in or Create a Garmin Explore Account to first access the topo mapping. See Getting Started with the Garmin Explore App on the Overlander.
2. Once the Garmin Explore App opens, it is recommended to download maps for your region. See: Downloading Maps with the Garmin Explore App on the Overlander  
   • The Topo North America mapping is a 1:24K scale.
   • The South America mapping is Digital Atlas of the Earth mapping.
   • This information can also be found on the Overlander.
     • See the steps below to access the map layer details on the Overlander.
   • See What Maps are Preloaded on my Automotive Device? for more information.

How to Access Map Layer Details on the Overlander:

1. Open Explore

NOTE: Topographic map layers can only be accessed when selecting the Garmin Explore App icon either from the Garmin Explore App directly or from the Drive mapping screen.

Garmin Explore App:

City Navigator Mapping Screen in the Garmin Drive app:

2. Select the Map Layer Icon

3. Select Manage Maps

4. Select the ? icon

5. Select the Map Type for map view and descriptions

Topo North America Details:

A high-detailed topographic map with features such as elevation contours, major highways and roads, 4x4 roads, forest service roads, trails, geographic locations, place names, landmarks, points of interest, hydrographic features, and land-use or land-cover detail. Public Land Boundaries for Bureau of Land Management, National Forests, and hunting and fishing areas are also included. The map detail is consistent and coverage in rural areas is unparalleled. Scale detail is equivalent to 1:24,000 data, which would be seen on USGS Quad Sheets.

OpenStreetMap Details:

OpenStreetMap (OSM) is developed and added to by community mappers around the world. OSM is a highly detailed dataset. In many rural areas of the world, OSM has medium-to low-detailed data. Features are added and edited by community members with local knowledge. Coverage of features may vary and includes geographic locations, place names, landmarks, points of interest, hydrographic features, and land-use/land cover. OSM is an open data source. OSM also includes an open data source elevation dataset. The scale is not consistent because the OSM data is Volunteered Geographic Information. Scale detail can vary from 1:24K or better in major urban areas to much higher scales in more rural areas.

You can contribute to this database for future releases by adding, updating, editing and commenting:

1. 1. Go to OpenStreetMap.org
   2. Create a free account
   3. Follow the outlined steps for becoming a contributor
      • If you prefer not to map the updates, you can add a comment at the location that needs reviewing and other contributors will review, investigate and apply the update when appropriate.

NOTE: You may have to disable some Garmin maps for the third-party map to show on the map page of the device. Ensure the Basemap is also enabled.

Digital Atlas of the Earth Details:

The Digital Atlas of the Earth (DAE) is a medium detailed, complete, seamless, global dataset, and includes all the world's continents and countries. It provides a consistent level of detail and reliable horizontal accuracy for features worldwide. The DAE includes major transportation layers, inland and shoreline hydrography, agreed and disputed jurisdiction boundaries, place names, and major topographic features including contours with elevation, and land-use or land-cover detail. Scale details are equivalent to data seen on a 1:125,000 map