Use the info at each point to solve the equations below and get the coordinates of the next point. All points are located at N48*45 and W122*28 and the solution to the equation provides the three decimal place digits. Please note: I recommend bringing your own writing utencil but there is a small pencil in the cache. Please leave it for the next geocacher!
Point 1: At the coordinates listed!
Point 2: N48*45.ABC where ABC = (Year of expedition) - 1667
W122*28.DEF where DEF = (Year planted) - 1168
Point 3: N48*45.GHI where GHI = (Year dedicated) - 1650
W122*28.DAB
Point 4: N48*45.GGF
W122*28.JKL where JKL = (Air Force Year) - 1081
(A little cache history: This waypoint used to be a Kiwanis plaque at N48*45.350 W122*28.717 but it has been removed)
Point 5: N48*45.GCG
W122*28.MNO where MNO = (Number of Salmon Returning) + 860
The Pickett Bridge plaque at this location which I had used for subsequent clues has been grouted over but here it is for posterity!

Point 6: N48*45.IDF
W122*28.OGJ
This new final location as of February 2025 is a bit farther down the path than the original one but it kept disappearing at that location! We'll see how it fares here. Please be discreet with the cache and enjoy this great little area! I'd be willing to bet most people cruise by and don't ever see the beauty below!