I thought it would be cool to overlay a geological map onto a topographical map. And maybe a property map onto an aerial image map. Then I would like to put these custom maps onto a smartphone GPS app. That way when I’m in the field, I can see that I’m in a favorable rock type area or approaching a private property boundary.
I see that MapWindow is a free GIS software that will let me make map layers. And for smartphones, it seems that Gaia GPS is a popular app.
Does anyone have experience making custom maps on their desktop then downloading them onto a smartphone GPS app? If so, what desktop software and smartphone app do you like?
Google Earth has layering capability... has anyone use GE to create downloadable map files for a smartphone?
PS, if you have done this for a handheld GPS instead of a smartphone I'd enjoy hearing about that as well.
Thanks