Scrappy929 wrote:...Seems as though the consensus is that they were buried during the hours of darkness due to Preiss trying to be incognito...
That is not really a problem. One could simply observe the shadow placement at a specific time of day, place some sort of marker (rock, flag, anything) and then come back later that night to actually bury the treasure. Easy peasy.
And, if we are correct in thinking the treasure is buried at the end of a shadow, a more interesting part of this method would mean that he may have had to work backwards to create the verse. So, it would be: Observe shadow, bury treasure (now or come back later), then look around to see what landmarks will help guide the treasure seekers, jot down some notes for the verse, take photos for JJP, and go home and write a book. I suppose one could walk around taking notes and photos first, and when you get to a general location, just look for an object that will cast a shadow and bury the treasure. However, the first way seems much easier.