It took many years for the dunes to form, but it has only taken a few for much of them to sink beneath the waters of an expanding wetland. As invasive plants such as European and American Beach Grass stabilized the dunes, it has created an unusually tall foredune which caused the sand in the deflation plain behind it to be blown away by the wind. As the interior sand vanished, the landscape descended until it reached the water table below. During the winter months when precipitation is much higher, the water table can rise substantially, transforming the plain into a sprawling wetland.
The geocache is not at the listed coordinates, you must solve this field puzzle near the location to find the final.
Here is the final location: N 43.57.ABC W 124 08.232
Find the number the "?" represents.
A = Number of fence posts from sign board to trail opening plus one
B = Annual Northwest forest pass, number at the bottom. A0-4?0001
C = Violations punishable 36 CFR ?61.17.
Good luck! You will need to bring your own pen to sign the log.
Check sum for your answers: A+B+C = 10