If you have an iphone, download Mapout and take a look.
I use it a lot for recording .gpx files from bushwalks and 4WD trips . . . the more you zoom in the more detail you get.
Free app on iphone (not sure if out for android it's been years) and you can download maps free as needed, Worldwide, at home with wifi, they stay on the device, can be deleted if all you need is the gpx, map not needed again.
It shows an incredible and unexpected amount of detail, even very minor walking tracks, I'd be keen if anyone in the US and other places finds the same for areas like this.
I've found remote trails walked in places we've walked in Nepal, Bhutan, PNG, New Zealand and all over Oz.