This is a simple two stage multi cache which will require you to go for a short hike once you determine the final coordinates. At the posted coordinates you will find a container that will require you to determine the correct digits.
Final cache can be found at the following coordinates -
N 47° 23. N1 N2 N3'
W 122° 40. W1 W2 W3'
North checksum = 31
West checksum = 27