"To download a map" means to transfer or save a digital file that contains a visual representation of a place or area onto a computer or device so that it can be accessed and viewed offline at a later time. Full definition
Download a map of park sites, stop by a visitor center or check out the Things to Do section to find an activity that meets your interest. (nps.gov)
In addition, users can select their destination, get turn - by - turn walk navigation, get public transit directions and can even download maps for offline use. (techone3.in)
One of our favourite features has also jumped out of beta, or the experimental side of things, so you can now download maps and cache them. (pocket-lint.com)