This cache is a simple two-stage multi-cache..
But this cache spot really had to be done as a two stage instead of a plain traditional cache.
Ironically I'm placing this cache as school is finishing for the year and now you have to do math & history.
You will need the number from the plaque to get the next coordinates. N 47° 29.5A W 111° 17.2BB
A = Day he took his oath of office x 3 + 9
B = Day he took command of his ill-trained troops x 2
No need to look in the landscaping.
You can check your answers for this puzzle on GeoChecker.com.