The posted coordinates are false. You must solve the puzzle to find the cache.
Siegi has been caching for nearly 10 years and is almost at 5000 finds. She is always up for a crazy adventure in a swamp or a bushwhack up a mountain despite unfavorable weather conditions.
Congratulations to Siegi on the upcoming milestone.
Find the coordinates for the first cache that SiegiGeo ever found and subtract 11.004 from North and subtract 5.230 from West.
Final coordinates at N 42° 55.933' W 71° 5.325'
Gur pnpur vf pybfr gb na byq qveg ebnq va Xvatfgba.