Detailed mapping on an outdoor handheld, such as Topo 24K, Topo 100K, or TopoActive, may not display correctly or at all if 'Worldwide DEM Basemap, NR' is disabled in the map settings or if you have multiple detailed maps enabled at the same time.

The 'Worldwide DEM Basemap, NR' comes installed on many of Garmin's handheld devices which displays major roadways, state and country boundaries, and major geographic boundaries. The device switches between the additional topo mapping and the Basemap when zooming the map out so you can pan the map to view other locations without waiting for the device to draw all the topography lines in the area. A slowly drawing map or freezing of the device can be a result of the Basemap being disabled.

When multiple detailed maps are loaded to a handheld, they fall into a specific hierarchy. This can cause some detailed maps to be hidden when other detailed maps are also enabled. For example, if you have both City Navigator maps and Topo 24k maps loaded to a handheld, the City Navigator map would need to be disabled in order to view the Topo 24K map.

If the map you are trying to use is not being displayed properly, ensure the Worldwide DEM Basemap, NR is enabled and that other detailed maps you are not currently needing are disabled.

Enabling & Disabling Maps

NOTE: If you are using a GPSMAP 276Cx, select MENU while viewing the map page, then follow steps 3 and 4 in the instructions below.
  1. Select Setup from the main menu.
  2. Select Map.
  3. Select Map Information or Configure Maps.
  4. Ensure that both the 'Worldwide DEM Basemap, NR'1 and the specific detailed map you are trying to use are enabled. Any other detailed maps that are not currently needed should be disabled. Steps for enabling/disabling maps will vary slightly depending on your specific model:
    • Enabled maps will say "Enabled" or they will have a check mark or raised toggle switch2 Enabled Toggle Switch next to them.
    • Disabled maps will say "Disabled" or they will have an empty checkbox or lowered toggle switch2 Disabled Toggle Switch next to them.
    • Select the map, checkbox, or toggle switch, then Enable or Disable (if prompted) to change which maps are enabled.
Once the Basemap and the desired detailed map have both been enabled, the map will display as expected. If you have multiple detailed maps, repeat these steps as needed to switch between maps.

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