Not knowing much about this cache, I studied the area using the provided treasure map (if a more detailed treasure map is available, it would be extremely helpful). I also studied the City of Brentwood online map (available
here).
A few things to notice:
1. In the treasure map, the word Road is written 3 times in descending order - like a staircase. If you study the Williamson County map from 1878, you will notice a road immediately beneath the number 15 that drops in descending order - just like a staircase.
2. There is a picture of a church - lettering is too blurry to make out.
3. There are several buildings at the bottom, along with the words "tool shed" and what appears to be the word "barn lot".
Based upon the clues given in the treasure map, I would give an educated guess that it's pointing to Boiling Springs Academy. Or perhaps, Boiling Springs Academy is one of the markers on the map.
Reasons to believe this site to be important:
1. The word "Rail fort". Again, the word is blurry, but the word "fort" is pretty clear. What's interesting about Boiling Springs Academy is the statement regarding a
fort-like fence that surrounds it.
"One of the towns where the Priest-Chief, his family and other important leaders lived was in Primm Park which was surrounded by a
fort-like fence called a palisade."
Boiling Spring Academy | City of Brentwood
2. Boiling Springs Academy also use to be a church.
3. Immediately across the street is an historic landmark known as the Owen-Primm House. This may have no significance at all, but the land appears to have a barn and shed.
Unfortunately, if there was a cache at that site, it's now probably gone. It appears that the Smithsonian performed an excavation of the Indian mounds (called the Fewkes Site) during the 1920's, which may have been a cover for excavating the cache. But who knows?
FYI - if someone uses these clues to discover the cache, please contact me for the 10% finder's fee. :-)
