Not your normal diamonds...
NOTE - 3/17/19
I had to relocate the final slightly and also changed the container and hint. Equations below have been updated for the new location.
If you already figured out the answer based on the old equations, the new container is 177 feet away on a bearing of 216 deg.
The cache is not at the given coordinates, but is within half a mile.
The 11 sets of coords listed below are for similar well-known structures located throughout the United States. Associated with each structure is a proper noun related to the employees of said structure. Count the letters in each name and record. Happy Google Earthing! (suggestion: copy and paste?)
37 46.703 -122 23.381 A = ___
47 35.473 -122 19.963 B = ___
39 45.352 -104 59.650 C = ___
38 37.349 - 90 11.592 D = ___
39 5.843 - 84 30.412 E = ___
42 20.358 - 83 2.931 F = ___
40 26.819 - 80 0.359 G = ___
38 52.362 - 77 0.458 H = ___
39 17.019 - 76 37.308 J = ___
39 54.344 - 75 9.994 K = ___
42 20.781 - 71 5.857 L = ___
(checksum for A thru L = 77)
--------------------------------------------------
Final coordinates of the cache (ddd mm.mmm) are:
LAT: 39 (A - 1) C . (E + 1) (D – 2) (B - 8)
39 ___ ___ . ___ ___ ___
(checksum for mm.mmm = 24)
LONG: -105 (H - K) (F - 3) . (G - 3) (L - 5) (J - 4)
-105 ___ ___ . ___ ___ ___
(checksum for mm.mmm = 12)
35mm, log only, no (bull)pen. Sorry, no diamonds.
Be aware of muggles and traffic in the area.
Convenient parking, no fee.