Lost Dutchman Goldmine

I just got back from Phoenix and the Superstition Mountains. I don't consider myself a dutch hunter, but I do think there are several clues that are important to solving this interesting puzzle.

1) Location of Massacre Grounds in conjunction with the location of the bodies of the Two Soldiers ...

As a newbe myself, here is my thinking on why Waltz never filed a claim:

Guilt.

He killed seven people over this mine. At least 3 of the people he confessed to killing on his deathbed were found to historically exist and ended in horrible death in the mountains.

He also was greatly fearful of ...