With your info , you made this thread quite interesting.
Vikings are so two years ago. A long-ship buried vertically.
I like the ley-line theory. That's right up there with crystal healing and the zodiac "signs" having any significance in the natural world.
I think Bigfoot was a giant Templar knight from Atlantis who got stuck in his chain mail and it got mossy, so he dug a hole in some Canadian island swamp to hide the Arc of the Covenant and Tesla's death-ray while soaking in coconut fiber bath salts as he pondered the Beale Codes.
Oh, and some guy in France made a painting of it showing a tomb and some funny runic code but that was accidentally dynamited by aliens who left only a Roman Sword made in Taiwan . . . but coincidentally the blade was proportional to the handle by the Golden Mean according to a 2,000 year old Masonic parchment printed in 1820.
If we can tie in Amelia Earhart, Al Capone and the Lost Dutchman Mine we're full cycle.