The cache is NOT located at the coordinates listed above. There is a highly unusual sign located on a major East-West road in Andover that leads to a Route 93 interchange. Oddly enough, this sign makes reference to the White Mountains, and uses an arrow to point one in this direction via Route 93. Given that the White Mountains are my family's favorite vacation destination, I've created this puzzle cache.
In order to solve the puzzle, you will need to locate this unusual sign. From the sign, navigate 1.557 kilometers at a true bearing of 174.3 degrees to the cache. The cache is a medium size lock-and-lock container.
Congratulations to g-o-cashers for being the FTF! You can check your answers for this puzzle on GeoChecker.com.