My Map Overlays Map Shapes

Parameter name: map_overlays

The shapes created with the “My Map Overlays” tool may be referenced with the &map_overlays= parameter. Multiple overlays may be specified in a comma-separated list of map overlay API keys.

To obtain the map overlay API key of an overlay, follow these steps:

  1. Visit the My Map Overlays menu item in the Preferences menu, and select the overlay containing the desired shape.
  2. Click the desired shape, then click the edit link, as shown below:

  3. Click the “Show API Key” link that appears:
  4. The map overlay API key will appear. Use this as the value for the map_overlays parameter.