Route 1 is high-lighted in yellow. The other yellow line is the Idaho/Montana state border.
Route 1 goes from T/O to the north end of Pahsimeroi Mts., east of Challis. Dog-leg to Salmon Airport. Dog-leg to Anaconda Airport (off map)

Route 2 goes from T/O to Sunset Peak. Straight line NE through Dell Montana airport, continued past Three Forks Montana.

Route 3 goes from T/O, straight line east to Henry's Lake airport. From Howe to "Four Corners" (intersection of Hwys. 22 and 28) you must stay north of Hwys. 33 and 22 to avoid restricted airspace over Idaho National Engineering/Environmental Laboratory (INEEL).