Koch, 72, who made his fortune partly by developing underground coal deposits in Somerset, Colorado, is building the out-of-the-way oasis at his nearby Bear Ranch, a working cattle operation southwest of Aspen. Photographer: Matthew Staver/Bloomberg
Koch, 72, who made his fortune partly by developing underground coal deposits in Somerset, Colorado, is building the out-of-the-way oasis at his nearby Bear Ranch, a working cattle operation southwest of Aspen. Photographer: Matthew Staver/Bloomberg