This bush trip is meant to be played without GPS. I would recommend using LittleNavMap with google maps satellite layer. - https://www.avsim.com/forums/topic/548994-new-maps-for-lnm/
Just set “show aircraft position” and “show aircraft trail” to off.
You’ll need a capable STOL machine for this one. I was flying Savage Grravel -https://flightsim.to/file/5061/savage-grravel-monster-truck-in-the-skies

You should really plan ahead and always have a good look of the next landing area since some of them are very small and hard to find.
Or you can just use GPS and just enjoy the scenery. It’s a game anyway ;) 
I was flying live weather but any preset that is not too windy should do.
Whenever there are two waypoints close to each other there’s a place to land roughly on the line between those two points. I’ll describe each waypoint and the whole trip in a included txt file.

I dind't take much pictures for the presentation but I made a video. If you have 3 minutes and 20 seconds feel free to watch it ;)

Instalation: Just extract anywhere read the bush trip IDAHO.txt and open VFR Cascade (U70) to Stanley (2U7) no GPS.lnmpln with LittleNavMap

Enjoy the flight! Any feedback is welcome.