Big Bend Conservancy
2020 BigBendChat Calendar on sale now!
It's not free, but backcountry navigator pro is definitely the best. You should look at Gaia GPS. I don't have any experience with it, but it's free and allows map downloading.
If anyone is interested I really liked using the app backcountry navigator pro. Very much worth the$10. Here's what I did for this trip. https://www.google.com/amp/s/hpka.net/2014/06/11/making-your-own-backcountry-maps-waypoints-and-route-and-using-them-on-your-phone/amp/?client=ms-android-verizon
All photographs and content posted by members are to be considered copyrighted by their respective owners and may not be used for any purposes, commercial or otherwise, without permission.