GPS gets a bit sketchy getting out here, as there are a good lot of tall trees! You will definitely loose 4G and pretty much all other internet access... Coming out of Stevenson,cross the third bridge, then get to looking under the West side. Making this a 3 on the terrain, as ya gotta do a little scrambling and ducking and stuff to get to where you wanna be. I'm giving it a 4 on the difficulty scale too... When you find it, please give me feedback as to your thoughts on this!
I brought a Travel Bug from a TB hotel in Vancouver for the FTF to move along... good luck in your hunting!