A nice easy PNG that requires a quick bit of googling and some math. Becoming a bit of a nut for history puzzle caches so figured I'd hide one while visiting. Nobscot Hill commands a 360-degree view including Boston, MetroWest, the Blue Hills, Lower Kearsarge, Mount Monadnock, Mount Wachusett, Mount Agamenticus, and all of the unremarkable bumps to the SouthWest. This hill is also home to 2 of the top 25 Oldest Geocaches in Mass!
* The highest point of Nobscot Hill is AAA ft.
* A medicine man called Old Jethro lived on Nobscot Hill at the beginning of King Philip’s War in 1BBB.
Now ADD AAA to the north coordinates and SUBTRACT BBB to the west coordinates (i.e. 21,023+AAA). Remember this is a PNG so no crazy hiking required to get to this cache.
Congrats to kestrel76 and BD1982 for their CO-FTF!
You can validate your puzzle solution with certitude.