There’s probably a way to make an interesting “National Treasure” sequel out of this. It would have to be better than the second movie.
https://www.imdb.com/title/tt0519352/
Wms and Pepper — This one?
https://www.goodreads.com/book/show/3895609-lost-treasures-of-the-west
I’ve looked for a few of these (not very hard. just hiked in the general areas). There’s darn good reasons they are lost treasures.
“Treasure Tales of the Rockies”
Wms and Pepper — This one?
Might be. they also wrote magazine articles in various treasure mags.