Do not cross the fenceline or mess with the fenceposts. The cache is on state property, not private.
The cache is not at the posted coordinates.
This is just a simple cache but I wanted to bring you to this plaque. A lot of things happened here over the years. I wonder what will happen in the next 200 years?
This isn't mentioned on the plaque but the pony express came just south of here back in its day and the present line of the Union Pacific Railroad reached here in 1902.
To find the cache you'll need to do a little math. (Thanks to NoBigDipper for catching my errors. I was sending you to the wrong place.)
A = The year the Army first arrived - 1829
B = The number of mules the Army had - 32
C = The year the Overland Stage Staion began operations - 1846
D = The year the smelter began operations - 998
N 40 A.B W 112 C.D
You can check your answers for this puzzle on GeoChecker.com.