This is a two-stage cache that starts at the same starting point as the Cemetery Gauntlet - Micro 1.
To complete this cache, you must collect all the Cemetery Gauntlet Micro-caches:
Cemetery Gauntlet - Micro 1
Cemetery Gauntlet - Micro 2
Cemetery Gauntlet - Micro 3
Cemetery Gauntlet - Micro 4
This provides you with dates, and the combination to the Master Lock 5401 that is hidden near the first micro stage. The Master Lock 5401 replaces the old Master Lock 5400 that was originally hanging on the nearby fence. It is theorized that city workers found the one hanging on the fence and removed it. The Master Lock 5401 is now hidden in a tupperware container very close to the first Micro.
With the right combination, the front will open up to reveal the hints to the final coordinates of the cache. To get there, you will need the information requested at each micro-cache, and the internet to look up a bit of history.
The cache itself is a 50 cal ammo box in a black plastic bag containing an FTF prize, and a nice bounty of plunder.
