Excellent work, Researchers!
But there's more.
There's another source of information that I don't think anyone has considered yet.
As wonderful as the newspaper articles are, and as rich as books on the area are, and as fantastic as the local maps are... there is another source for this kind of information.
Unfortunately, sources almost never rise to the top in an ordinary search, so you have to know about it, and then go looking for them as well.
Consider looking for local libraries, historical societies, and museums. (Remember? We talked about the role of libraries and museums in an earlier Search Challenge.) 
The old library in Boulder, CO, home to the local historical archives.
They often collect locally relevant historical information (maps, photos, oral histories), making at least some of their collection available online.
And even if they don't have a great deal online, they frequently will point to other relevant nearby collections that do.
As several people have pointed out, this wreck is near the former town of Eckley (so there's no library to find), so you'll have to expand your search to include other nearby towns.
Pro tip: In the US (and, I believe in the UK), historical organizations are also sometimes set up at the county level. Search for organizations along those lines, and see what you can find.
Keep searching! There's always more to the story...
Also, to keep the narrative together, please don't comment HERE on this post about the search challenge. If you have a comment about the search challenge, go back to the previous post (see "Older post" link below), and leave your comment there. K?