Colorado Photos Marble Mill, White River National Forest Previous Photo : Photo Index : Next Photo This rustic building is an abandoned compressor house that was among the first of its kind. A waterwheel was used to pump air into nearby mines along a pnuematic tube - a new invention at the time. The idyllic setting above a gushing waterfall and emerald plunge pool make this one of the most cherished historic buildings in Colorado. Getting to this spot requires some determination and confidence in your 4x4. It is located in the clear creek valley, along a rocky and narrow track from the village of Marble. If you would like to use a photo, please write and ask. I almost always agree. Mail Form Here!