You will have to collect 6 numbers to figure out the coord. of the cache.
If the clue points to a letter, change it to it's position in the alphabet.
Ex. A = 1, B = 2, Z = 26, etc
N1) Go to N46.03.810 W064.49.099 Look up
2nd. Letter in the first Row
N2) Go to N46.05.912 W064.44.820
2nd. number in the year this building was built.
N3) Go to N46.06.293 W064.45.190 Look up
The 2nd. yellow letter
N4) Go to N46.06.354 W064.47.582 Look up
(1st letter - 5th letter)
N5) Go to N46.05.761 W064.49.862 Look up
What letter do you see.
N6) Go to N46.05.684 W064.49.067 Look up
What's the number in blue.
The final Coords. are :
N 46.(N4)(N1-N3).(N6)(N2)(N3)
W 064.(N3+N6)(N5).(N2)(N4)(N3)
North Checksum is 31
West Checksum is 27
Now off to score your goal