Good work as always mdog. I'm going to add a little here to the LUE discussion/confusion. From what I've worked with in the past, if there really is something known as the LUE, I tend to favor a Colorado location. I keep wondering about two of the Colorado Peaks you've analyzed - Treasure Mountain and Culebra Peak. First, let's start at a quick peek at some of the "coincidences" of treasure lore sitting on the 33rd parallel north. I'll limit this to stuff very close to that latitude in AZ and NM.
View attachment 2139091
Adamsville AZ is a major KGC site for Brewer and others, tied to Jacob Waltz and the unsolved dilemma of the "Lost Dutchman" legend nearby.
The Big Lue Mountains (high point in the range) speaks for itself and is tied to local treasure legends not related to the LUE.
Lone Pine NM (mouth of San Francisco River) is a very common KGC place name clue (as is Adams above).
Twin Sisters Peaks NM is a landmark filled with treasure-related petroglyphs, geometrical mapping and gigantic "7 Cities" legends.
Timber Mountain NM (high point) is in the Caballos and site of a low-profile, high stakes recovery there that was shut down by Covid and is attempting to reorganize. If that one fails, there are plenty more ongoing in the Caballos..
Spaceport America NM is just plain weird, carefully placed on this parallel for some reason. Treasure lore? Not that I know of.
Victorio Peak - we all know about this place.
This establishes, if nothing else, several known and possible nodes on potential treasure maps - local maps, regional maps, continental maps, world maps.