To get the exact coordinates, first you'll have to do a little easy
research on the man behind the big box.
N38° 51.abc W104° 43.def
Year the man was born:19__-8=be
Year he died: 199a
Year he met his wife Helen: 194_+1=d
Year his son died in a plane crash: 200_-5=c
Year of the 25th anniversary of the big box: 198_-6=f
Please be stealthy, as usual! It might be a good idea not to
park right by the cache.
You can check your answers for this puzzle on
Geochecker.com.