This chimney is all that’s left of what used to be a train station on the Switzerland Trail, formerly a narrow gauge railroad that ran from Boulder to Ward, hauling mining spoils and tourists. Now the railroad grade has trails/ dirt roads, and the former station is a picnic ground.
I am still looking for more recognizable railroad relics in the neighborhood of the Switzerland Trail for the film I’m working on that was originally about Ward and is now more about a reversal of the process of “civilization,” expansion and settlement as dramatized in Western films.