the pictures are about Leadville Colorado, and the story is about how the camper worked, confusing? Yes it is.
The rich folks of Leadville built massive homes in town, they had to be massive to have room for the servants, because in town was where the wealthy wanted to live, there they were closer to their fancy restaurants, opera houses, and high-class drinking establishments where the rich rubbed elbows and conspicuously displayed their wealth and power.
As you can tell by now the pictures do not match the story at all but I wanted to throw this in there nonetheless. If you're interested in history the Wikipedia page on Leadville is very interesting and entertaining, Leadville's history has connections to OK Corral participant Doc Holliday, a Broadway musical, a Jimmy Buffett song, the Titanic, and much more. Give it a look see and it might make you wonder what else went on in Leadville.
Whenever you see a bunch of stones piled next to a river that means the river had a gold dredge on it back in the 1800s. The dredge dug deep into the riverbed pulling up the rocks and the muck and separating out the gold. It was an efficient way of placer gold mining but it destroyed the river for a long time.