600 barrels of gold and jewels? To bury this much 50 feet underground would have required a regiment of diggers--none of whom, evidently, ever returned to dig up the treasure. Hate to be a nay-sayer, but this story sounds like a phony.
Could have been hidden ina cave and then dynamite used to cover the entrance...
"To bury this much 50 feet underground would have required a regiment of diggers--none of whom, evidently, ever returned to dig up the treasure."
Ghengis Khan funeral detail.