I just installed Locus Pro, with the understanding (based on reviews of Locus) that it included access to MyTopo maps for USA. But they don't appear in the online maps list. It does not appear that there are any topo maps available online for the USA. Am I missing something? The app won't be very useful for hiking without topo maps.
You could install https://play.google.com/store/apps/deta ... usmaptweak (https://play.google.com/store/apps/details?id=com.mjk.locusmaptweak). That should give you "My Topo US" and lot of other maps.