I got the impression that they might be some old dirt ore from the 1950s - back then, there were a ton of articles in magazines like Popular Science and Popular Mechanics (check 'em out on Google Books and the like) about the "new gold rush - for uranium ore".
Lots of people from all over drove out to the southwest with bucket and shovels, and tried to find this stuff in a (probably misguided) attempt to "strike it rich".
I'm sure more than a few just left their buckets of dirt sitting around Flagstaff and GCNP area - and they were found and moved around - and...
...here we are.
May or may not be true in this case - but I'm sure it has happened (and I am certain more buckets wait to be found).
Lots of people from all over drove out to the southwest with bucket and shovels, and tried to find this stuff in a (probably misguided) attempt to "strike it rich".
I'm sure more than a few just left their buckets of dirt sitting around Flagstaff and GCNP area - and they were found and moved around - and...
...here we are.
May or may not be true in this case - but I'm sure it has happened (and I am certain more buckets wait to be found).