A little bit of history, a bit of math, a bit of searching, and you'll have the cache in hand.
You need information from three locations to determine the coordinates of the final.
The final hide location is at N49 06.AAA W117 43.BBB
AAA=
The obvious number found at N 49 06.625 W 117 43.312 minus the last two digits of the following dates:
- the year of the petition
- the year the community hall was built
- the year of amalgamation plus 1
Then subtract 2.
BBB=
- Add together then multiply by 3 the last two digits of the following information and dates
- the number of acres
- the year incorporated
- the year the school operated until
Then subtract the result from the obvious number at N49 06.697 W117 43.299
Then subtract the last two digits of the year of the petition and add 6
You can check your answers for this puzzle on GeoChecker.com.