The cache is NOT AT THE GIVEN COORDINATES. But if you visit them you will be standing in front of the oldest surviving Nevada State Governor's residence.
The cache is actually hidden at N39o 10.EFG W 119o 46.FHB
F=D/2, G=C-3, H=A-C
The values of the letters A through E can be found by completing the Kit Carson Trail Adventure Lab. Each stop will give you one of the numbers.
The container is a magnetic nano hidden in a usual spot. It is located somewhere along the Kit Carson Trail. In fact, it is right across the street from another of my favourite buildings. Please use stealth when signing the log.