The Posted Coordinates will take you to two Signs placed vertically. Read the bottom Sign. Read and observe the top Sign.
How many Bullet Holes are on that top Sign?
If 2 bullet holes, then Final Coordinates are N47 36.850 W122 18.606.
If 3 bullet holes, then Final Coordinates are N47 36.848 W122 18.565.
If 4 bullet holes, then Final Coordinates are N47 36.850 W122 18.538.