Whitehall Mystery - FINAL Mystery Cache

Use the clues gathered from the other Whitehall Mystery caches to determine the coordinates for the FINAL cache. The other caches are:

• Whitehall Mystery #1 (GC92RJC)
• Whitehall Mystery #2 (GC92JBC)
• Whitehall Mystery #3 (GC92JVY)
• Whitehall Mystery #4 (GC92K1X)
• Whitehall Mystery #5 (GC92K5M)
• Whitehall Mystery #6 (GC92K8A)
• Whitehall Mystery #7 (GC92K61)
• Whitehall Mystery #8 (GC92K6M)

The FINAL cache is located at the following coordinates:

N42 [A - B - (2 * C)].[D - C][A - D]
W71 [H + (2 * G) - F + E - B + D].[D + G - C][A + E + B - G]

Well, at least the next step in your journey is located at those coordinates...

Background on the Whitehall Mystery series

Early in the nineteenth century, prominent citizens from around the northeast would travel by four-horse stagecoach to visit Hopkinton’s famous “Mineral Springs and Hotel” located about four miles from the town’s center.

In the mid-1800’s the hotel was burned to ground under highly suspicious circumstances.  Lost in the fire was a set of priceless jewels that were never recovered, but stories quickly began to circulate that one of the hotel staff members had removed the jewels during the fire and hidden them in the woods nearby. This hotel staff member has never been identified.

Not long after the fire, Lake Whitehall was created by holding back portions of the Sudbury River when public health officials determined in 1878 that additional sources of drinking water were required to support the needs of the Boston area.

It was thought that the jewels were lost forever; however, there has been a new development in the story.  Eight pages of a diary believed to have been owned by the mysterious staff member have been located.  Each page seems to contain a clue to the hiding place of the jewels.

It is hoped that by solving these clues you will be able to locate the missing jewels…good luck!

Whitehall Mystery Series Hall of Fame (First 50):

1. FTF: capybaron (24-Nov-2020)
2. Penguin Expeditions (24-Nov-2020)
3. ritell (27-Nov-2020)
4. jazzbaby (28-Nov-2020)
5. penpal (28-Nov-2020)
6. Trail Buzzards (28-Nov-2020)
7. Upshot (28-Nov-2020)
8. gpscouts (2-Dec-2020)
9. Izzy's Pets (3-Dec-2020)
10. Bill the Cat 89 (10-Dec-2020)
11. kestrel76 (10-Dec-2020)
12. Catkin&Golden (10-Dec-2020)
13. GeoRatz (10-Dec-2020)
14. CachingCanes (10-Dec-2020)
15. BostonBrewins (12-Dec-2020)
16. kerrytherat (12-Dec-2020)
17. dindin5 (13-Dec-2020)
18. geshy (26-Dec-2020)
19. vynysy (26-Dec-2020)
20. Charles_Carroll_VI (26-Dec-2020)
21. massivechessset (26-Dec-2020)
22. KFm5 (31-Dec-2020)
23. Hypercycloid (17-Jan-2021)
24. Dickster1 (03-Mar-2021)
25. BD1982 (27-Mar-2021)
26. uciphd (27-Mar-2021)
27. mswma (27-Mar-2021)
28. Dr.MORO (27-Mar-2021)
29. Ether Bunny (30-Mar-2021)
30. TartagIC (17-Oct-2021)
31. phage1 (20-Oct-2021)
32. Hipointer and Capiti (23-Jan-2022)
33. Bushwhack Bob (23-Jan-2022)
34. macfriends (18-Mar-2022)
35. Dino Hunting (01-May-2022)
36. The History Hunter (01-May-2022)
37. BillKaren (19-Jun-2022)
38. The Victors (29-Jun-2022)
39. RecipeForDisaster (06-Nov-2022)
40. Roscoe45 (06-Nov-2022)
41. FormalData (10-Dec-2022)
42. Mckwayne (15-Jan-2023)
43. MckTeem (15-Jan-2023)
44. MagicRide (15-Jan-2023)
45. The plunks (15-Jan-2023)
46. Summit Seeker w Kids (28-Jan-2023)
47. MtnProf (12-Apr-2023)
48. GalinaF (27-Jun-2023)
49. Cleojazzfloyd (22-Sep-2023)
50. Grampy Catfish (22-Sep-2023)