In case you are wondering, I use Streets and Trips on my laptop which is hooked up to my GPS while traveling. I have tried to make the coordinates user friendly for those of you using other mapping programs as well.
N 45.67861 W 122.66513
N 41.36574 W 089.21901
N 41.96758 W 112.76483 **
N 42.86864 W 085.68059
N 41.52404 W 109.44544
N 41.57473 W 87.47823
N 45.56149 W 122.56337
N 42.25872 W 085.52992
N 46.94240 W 103.83046
Once you figure out the actual coordinates, they will take you to the best parking and an obvious spot where you will find a film canister with the coordinates and hints for the rest of your journey.
The cache is placed in a spot where you can hear the dull roar of travelers, of course. It contains things to help you on your trips and some a few playthings for the kids while you travel.
** Those of you who know me will also know why this is my most favorite stop!
