>>2599267I do t think you can, Anon.
I did some digging a while back trying to find an app for the same thing: importing and offline viewing of USGS geoPDF’s for free (or a reasonable price, not some subscription nonsense). There were only a handful of apps that allow it, and most are limited.
I don’t think OsmAnd supports GeoPDF, which is what USGS maps use. So even the allowable 7 free maps without a subscription doesn’t help.
https://osmand.net/docs/technical/osmand-file-formats/The reason the government uses geospatial PDF’s is because it’s such a simple concept; it’s just a PDF file with GPS data referenced to it. CalTopo uses the format when you export custom maps.
Years ago there were at least two apps that allowed a limited number of free imports. So anywhere I went I had a paper USGS Topo map and an electronic copy of the same map for quick reference. PaperMaps was one, I’m not sure what the other one was. Those switched to subscription service only. Of the big three (Gaia, AllTrails, and Avenza), I think one allowed for a limited number of free uploads. I don’t think it does anymore.
I did find Topo Nomad, which I think is iPhone only. It’s $10 for a 99-year subscription (not Sure what the deal is with that, but it’s a one time fee. Maybe so you can re-upload if you get a new phone). It’s very basic. It has easy access to a library with all USGS maps, unlimited downloads, supports custom maps from other sources, and has the basic bitch tracking shot that I never use anyway. I know the maps are free from the government, but the app just makes it really easy to find various ones, and allows for custom uploads for a pretty low price. I can’t sweat $10, plus I think the days of free navigation apps are long gone.
