Pretty sure OSMAnd uses Open Street Maps as its base map.
If you’re wanting to download a track that you’ve created in OSMAnd, you can export it as a GPX, then import the GPX into Garmin BaseCamp, and then sync/upload to your Zumo.
Pretty sure OSMAnd uses Open Street Maps as its base map.
If you’re wanting to download a track that you’ve created in OSMAnd, you can export it as a GPX, then import the GPX into Garmin BaseCamp, and then sync/upload to your Zumo.