I have found tha tyou can't beat the National Geographics TOPO to be the best. I got a program with it to show GMU's, wich is help ful. The TOPO is the best out there.
Yes it would be nice to have private property boundrtys, but oh well 
Can you get the NG map for a newer Garmin Rino 530?
As far as I know, the only map you can download to a Garmin GPS is a Garmin TOPO, but you can download and upload waypoints from the NG program, but not the map 
There are actualy quite a few different maps that you can download onto the Garmin Rino unit. I just wasn't sure if the NG maps were one of them. According to their GPS Compatability website you should be able to download the TOPO maps onto the Rino 520 & 530
http://www.natgeomaps.com/gps.htmlHowever, it does not show that you can download the maps with Back Roads Explorer, Back Roads Explorer 3D, GPS USA. I'm curious what the difference is?? I would like to know if the map that is compatible with the Rino shows all the roads that you see on a USGS map...anyone know??