I was thinking about one other thing and while not today, I did get an app for our smartphones: http://maps.me/en/home

The nice part is it downloads the area map and will not require any connection to work as a map. You have to use the old school read-a-map skill as the GPS isn't working but you have a workable map for reference.

I put on the phone memory a PDF file of our local metro area (lots of detail) and a state version too. Today I found a reference to: http://www.natgeomaps.com/trail-maps/pdf-quads

While the actual maps you can download are older - in many of the places I can find myself it's still the same ground and not much has changed.

Paul -