Then I'll take your word for it...
Timothy..........I was sort of half joking so don't take my word for it as I really don't know where it came from.
Everyone in the area has their own opinion. We all just used to joke about being hauled in as it seemed to magically keep growing and became a tourist trap.
What is interesting is the fact that the sand is higher than the surrounding wooded area. Seems to me that if it was there the whole time and has been exposed over time that it would be on the same plain or slightly lower than the surrounding area.