This video shows how to download topographic maps from Caltopo website in PDF format.
Caltopo.com is free to use. It supports many of the capabilities of desktop topographical mapping software but it’s online so you can access it anywhere and share it with other people. You can store maps you create with it for future reference, export and import gpx files, embed maps on a web page or send them with a hyperlink. Caltopo also supports collaborative planning, like Gmap4, but the printing is much better.
Caltopo was originally developed for search and rescue work by Matt Jacobs (a different Matt), who loaded it with California-specific mapping data. He later added data for the entire United States but the original name stuck.